Analysis of local characteristics and microstructure of dissimilar metal interface in scrubbing refill friction stir spot welding joint

Naoki Takeoka, Taisuke Tsuchida, Tomoki Matsuda, Tomo Ogura, Ryoji Ohashi, Akio Hirose

Welding International　Vol. 36　No. 9　p. 555-567　2022/09/02　Research paper (scientific journal)

Development of aluminum alloy/galvanized steel joining method using refill friction stir spot welding

Naoki Takeoka, Takuma Miyama, Tomoki Matsuda, Tomo Ogura, Ryoji Ohashi, Akio Hirose

Welding International　Vol. 36　No. 6　p. 370-378　2022/06/03　Research paper (scientific journal)

Analysis of Mechanical Properties of Dissimilar Material Joint Using Scrubbing Refill Friction Stir Spot Welding

Naoki Takeoka, Taisuke Tsuchida, Tomoki Matsuda, Tomo Ogura, Ryoji Ohashi, Akio Hirose

Journal of Advanced Joining Processes　Vol. 5　p. 100112-100112　2022/04　Research paper (scientific journal)

Relationship between ferrite–austenite phase transformation and precipitation behavior of sigma phase in super duplex stainless steel weldment

Shotaro Yamashita, Kazuyuki Ike, Kazuma Yamasaki, Fu-Gao Wei, Kun Wang, Tomo Ogura, Kazuyoshi Saida

Welding in the World　Vol. 66　No. 2　p. 351-362　2022/01/10　Research paper (scientific journal)

Analysis of Local Characteristics and Microstructure of Dissimilar Metal Interface in Scrubbing Refill Friction Stir Spot Welding Joint

Naoki TAKEOKA, Taisuke TSUCHIDA, Tomoki MATSUDA, Tomo OGURA, Ryoji OHASHI, Akio HIROSE

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 40　No. 2　p. 77-87　2022　Research paper (scientific journal)

Friction stir spot welding of aluminum and carbon fiber reinforced thermoplastic using hybrid surface treatment improving interfacial properties

Eri Ota, Tomoki Matsuda, Hiroto Shoji, Tomo Ogura, Fumikazu Miyasaka, Tomokazu Sano, Mitsuru Ohata, Akio Hirose

Materials & Design　p. 110221-110221　2021/11　Research paper (scientific journal)

Prediction of reversible α/γ phase transformation in multi–pass weld of Fe–Cr–Ni ternary alloy by phase–field method

Dong–Cho Kim, Tomo Ogura, Ryosuke Hamada, Shotaro Yamashita, Kazuyoshi Saida

Journal of Advanced Joining Processes　p. 100067-100067　2021/06　Research paper (scientific journal)

Effect of heat dissipation on solidification cracking behaviour of austenitic stainless steel during gas tungsten arc welding

Jae-Hyeong Lee, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING　2021/06　Research paper (scientific journal)

Effects of cooling rate on solidification cracking behaviour in 310S stainless steel

Jae-Hyeong Lee, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Journal of Advanced Joining Processes　Vol. 3　p. 100044-100044　2021/06　Research paper (scientific journal)

Establishment of a theoretical model based on the phase-field method for predicting the γ phase precipitation in Fe–Cr–Ni ternary alloys

Dong-Cho Kim, Tomo Ogura, Ryosuke Hamada, Shotaro Yamashita, Kazuyoshi Saida

Materials Today Communications　Vol. 26　p. 101932-101932　2021/03　Research paper (scientific journal)

Theoretical phase-field-method-based model of the γ phase dissolution of base metals in duplex stainless steels

Dong-Cho Kim, Tomo Ogura, Ryosuke Hamada, Shotaro Yamashita, Kazuyoshi Saida

Materials Today Communications　Vol. 26　p. 102150-102150　2021/03　Research paper (scientific journal)

Computer prediction of phase fraction in multipass weld of duplex stainless steel - proposal of microstructural improvement welding process

Kazuyoshi Saida, Tomo Ogura, Shotaro Yamashita, Yusuke Oikawa

Materials Science Forum　Vol. 1016　p. 206-212　2021　Research paper (international conference proceedings)

Joint strength improvement in dissimilar friction welding of titanium alloy to nickel alloy with interlayer

Tomo Ogura, Tomoya Imai, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 38　No. 2　p. 79-83　2021　Research paper (scientific journal)

Dissimilar laser brazing of aluminum alloy and galvannealed steel using dual beam

OGURA Tomo, WAKAZONO Reiko, YAMASHITA Shotaro, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2021s　p. 140-141　2021

Prediction of reversible α⇄γ phase transformation in HAZ of multi-pass welded duplex stainless steel by the phase-field method

Dong-Cho Kim, Ogura Tomo, Yamashita Shotaro, Saida Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2021s　p. 40-41　2021

Development of Aluminum Alloy/Galvanized Steel Joining Method Using Refill Friction Stir Spot Welding

Naoki TAKEOKA, Takuma MIYAMA, Tomoki MATSUDA, Tomo OGURA, Ryoji OHASHI, Akio HIROSE

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 39　No. 4　p. 379-385　2021　Research paper (scientific journal)

Effect of Alloying Elements on Solidification Cracking Susceptibility of High Manganese Austenitic Steel

Shotaro YAMASHITA, Keiji UEDA, Atsushi TAKADA, Daichi IZUMI, Naoki SAHARA, Tomo OGURA, Kazuyoshi SAIDA

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 39　No. 1　p. 87-96　2021　Research paper (scientific journal)

Characterization of hot cracking in multi-pass weld metal of high manganese austenitic steel

Keiji Ueda, Shotaro Yamashita, Atsushi Takada, Naoki Sahara, Tomo Ogura, Kazuyoshi Saida

Welding International　Vol. 34　No. 10-12　p. 388-398　2020/12/01　Research paper (scientific journal)

Computer prediction of α/γ phase fraction in multi-pass weld of duplex stainless steel and microstructural improvement welding process

Dong Cho Kim, Tomo Ogura, Shotaro Yamashita, Yusuke Oikawa, Kazuyoshi Saida

Materials and Design　Vol. 196　2020/11　Research paper (scientific journal)

Dominant factors of cryogenic toughness of heat-affected zone of welding in high Mn austenitic steel

Keiji Ueda, Daichi Izumi, Atsushi Takada, Toshinori Ishida, Satoshi Igi, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Welding International　Vol. 34　No. 7-9　p. 335-348　2020/09/01　Research paper (scientific journal)

Change in Charpy impact toughness and carbide precipitation after ageing heat treatment of high Mn austenitic steel

Keiji Ueda, Daichi Izumi, Toshinori Ishida, Takako Yamashita, Atsushi Takada, Satoshi Igi, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Welding International　Vol. 34　No. 7-9　p. 314-328　2020/09/01　Research paper (scientific journal)

Suppression of solidification cracking via thermal strain control in multi-beam welding

Jae Hyeong Lee, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Materials Today Communications　Vol. 24　2020/09　Research paper (scientific journal)

Solidification cracking prevention by thermal strain control via water-cooled gas tungsten arc welding

Jae Hyeong Lee, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Materials Today Communications　Vol. 23　2020/06　Research paper (scientific journal)

Effect of mismatch in mechanical properties on interfacial strength of aluminum alloy/steel dissimilar joints

Tomoki Matsuda, Ryoichi Hatano, Tomo Ogura, Reo Suzuki, Hiroto Shoji, Tomokazu Sano, Mitsuru Ohata, Akio Hirose

Materials Science and Engineering A　Vol. 786　2020/06/01　Research paper (scientific journal)

Dissimilar laser brazing of aluminum alloy and galvannealed steel and defect control using interlayer

Tomo Ogura, Reiko Wakazono, Shotaro Yamashita, Kazuyoshi Saida

Welding in the World　Vol. 64　No. 4　p. 697-706　2020/04　Research paper (scientific journal)

Dominant Factors of Cryogenic Toughness of Heat Affected Zone of Welding in High Mn Austenitic Steel

Keiji UEDA, Daichi IZUMI, Atsushi TAKADA, Toshinori ISHIDA, Satoshi IGI, Shotaro YAMASHITA, Tomo OGURA, Kazuyoshi SAIDA

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 38　No. 4　p. 211-221　2020　Research paper (scientific journal)

Change in Charpy Impact Toughness and Carbide Precipitation after Aging Heat Treatment of High Mn Austenitic Steel

Keiji UEDA, Daichi IZUMI, Toshinori ISHIDA, Takako YAMASHITA, Atsushi TAKADA, Satoshi IGI, Shotaro YAMASHITA, Tomo OGURA, Kazuyoshi SAIDA

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 38　No. 4　p. 199-210　2020　Research paper (scientific journal)

Characterization of Hot Cracking in Multi-Pass Weld Metal of High Manganese Austenitic Steel

Keiji UEDA, Shotaro YAMASHITA, Atsushi TAKADA, Naoki SAHARA, Tomo OGURA, Kazuyoshi SAIDA

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 38　No. 4　p. 297-305　2020　Research paper (scientific journal)

Effect of Solute Elements on Solidification Cracking Susceptibility of Carbon Steel

Shotaro YAMASHITA, Ryosuke HAMADA, Kazuhiko ONO, LAN Weiming, Tsuyoshi ASADA, Tomo OGURA, Kazuyoshi SAIDA

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 38　No. 4　p. 316-324　2020　Research paper (scientific journal)

Effect of Impurity Elements on Solidification Cracking Susceptibility of High Manganese Austenitic Steel

Keiji UEDA, Shotaro YAMASHITA, Atsushi TAKADA, Tomo OGURA, Kazuyoshi SAIDA

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 38　No. 4　p. 306-315　2020　Research paper (scientific journal)

Effect of welding condition on solidification cracking behaviour in austenitic stainless steel

Jae Hyeong Lee, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Science and Technology of Welding and Joining　Vol. 26　No. 1　p. 84-90　2020　Research paper (scientific journal)

Effects of Interlayer Thickness on Dissimilar Joining between Aluminum Alloy and Magnesium Alloy using Laser Brazing

Tomo Ogura, Kazuyuki Ike, Kazuyoshi Saida

Keikinzoku Yosetsu/Journal of Light Metal Welding　Vol. 58　p. 113-117　2020　Research paper (scientific journal)

Influence of Solidification Mode on Solidification Cracking Susceptibility of Stainless Steel

YAMAUCHI Ryohei, YAMASHITA Shotaro, OGURA Tomo, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2020　No. 0　p. 100-101　2020

Joint characteristics of ultra-high strength 7000 series aluminum alloy using friction welding

OGURA Tomo, MIYOSHI Keisuke, YAMASHITA Shotaro, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2020　No. 0　p. 44-45　2020

Hot cracking susceptibility of commercial filler metals for alloy 617 by varestraint test - Study of hot cracking of alloy 617 in multipass welds

Shotaro Yamashita, Kenji Kamimura, Takahiro Niki, Tomo Ogura, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 38　No. 1　p. 1-10　2020　Research paper (scientific journal)

Prediction of solidification cracking during arc welding of 310S stainless steel in U-type hot cracking test

Jae Hyeong Lee, Yu Itasaka, Shotaro Yamashita, Tomo Ogura, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 38　No. 2　p. 68-75　2020　Research paper (scientific journal)

Hot cracking susceptibility and solidification segregation analysis by computer simulation in duplex stainless steels

Dong Cho Kim, Tomo Ogura, Yoshihiro Tanabe, Shotaro Yamashita, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 38　No. 2　p. 76-84　2020　Research paper (scientific journal)

Hot cracking susceptibility of commercial filler metals for Alloy 617 by Varestraint test. Study of hot cracking of Alloy 617 in multipass welds

Shotaro Yamashita, Kenji Kamimura, Niki Takahiro, Tomo Ogura, Kazuyoshi Saida

Welding International　Vol. 33　No. 4-6　p. 166-178　2019/06/03　Research paper (scientific journal)

Improvement of joint strength in dissimilar friction welding of Ti-6Al-4V alloy to type-718 nickel-based alloy using the Au–Ni interlayer

Tomo Ogura, Keisuke Miyoshi, Takahiro Matsumura, Tomoya Imai, Kazuyoshi Saida

Science and Technology of Welding and Joining　Vol. 24　No. 4　p. 327-333　2019/05/19　Research paper (scientific journal)

Hot cracking susceptibility and solidification segregation analysis by computer simulation in duplex stainless steels

Dong Cho Kim, Tomo Ogura, Yoshihiro Tanabe, Shotaro Yamashita, Kazuyoshi Saida

Welding International　Vol. 33　No. 4-6　p. 231-240　2019　Research paper (scientific journal)

Dissimilar laser brazing between aluminum alloy and galvanized steel and its defect control

WAKAZONO Reiko, OGURA Tomo, YAMASHITA Shotaro, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2019f　p. 210-211　2019

Effects of Zn- And Mg-contents for increasing strength and ductility of Al-Zn-Mg alloys with trace Mn- And Ag-additions

Tomo Ogura, Takahiro Oda, Tatsuo Sato

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 69　No. 3　p. 166-173　2019　Research paper (scientific journal)

Effect of solid-liquid coexistence region on solidification

Jae Hyeong Lee, Yamashita Shotaro, Ogura Tomo, Saida Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2019　No. 0　p. 32-33　2019

Relationship between intermetallic compound layer thickness with deviation and interfacial strength for dissimilar joints of aluminum alloy and stainless steel

Ryoichi Hatano, Tomo Ogura, Tomoki Matsuda, Tomokazu Sano, Akio Hirose

Materials Science and Engineering A　Vol. 735　p. 361-366　2018/09/26　Research paper (scientific journal)

Improvement of asymmetry in a friction stir welded A3003/SUS 304 lap joint by double-pass process

Tomo Ogura, Hidehito Nishida, Yuta Komiyama, Mitsuo Fujimoto, Akio Hirose

Welding International　Vol. 32　No. 8　p. 527-534　2018/08/03　Research paper (scientific journal)

Numerical analysis on solidification cracking susceptibility of type 316 stainless steel considering solidification mode and morphology computer simulation of hot cracking by solidification/segregation models

Tomo Ogura, Shinya Ichikawa, Kazuyoshi Saida

Welding International　Vol. 32　No. 6　p. 445-452　2018/06/03　Research paper (scientific journal)

Theoretical approach to influence of nitrogen on solidification cracking susceptibility of austenitic stainless steels: computer simulation of hot cracking by solidification/segregation models

Tomo Ogura, Shinya Ichikawa, Kazuyoshi Saida

Welding International　Vol. 32　No. 6　p. 436-444　2018/06/03　Research paper (scientific journal)

Effects of titanium interlayer on dissimilar joining between aluminum alloy and magnesium alloy using laser brazing

Tomo Ogura, Shunsuke Netsu, Kazuyuki Ike, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 36　No. 4　p. 247-252　2018　Research paper (scientific journal)

Hot cracking susceptibility in duplex stainless steel welds

Kazuyoshi Saida, Tomo Ogura

Materials Science Forum　Vol. 941 MSF　p. 679-685　2018　Research paper (international conference proceedings)

Dissimilar joining technique of light metals

Tomo Ogura, Kazuyoshi Saida, Akio Hirose

Yosetsu Gakkai Shi/Journal of the Japan Welding Society　Vol. 87　No. 1　p. 16-21　2018　Research paper (scientific journal)

Evaluation of solidification cracking susceptibility of aluminum alloys and its simulation

ogura tomo, Yokochi Tetsuya, Ikeda Suguru, Yamashita Shotaro, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2018　No. 0　p. 12-13　2018

Effect of Precipitation on Hot Cracking Susceptibility of Alloy 617

yamashita shotaro, Ogura Tomo, Morikawa Yusuke, Kazuyoshi Saida, Kenji Kamimura, Niki Takahiro

Preprints of the National Meeting of JWS　Vol. 2018　No. 0　p. 10-11　2018

Fracture toughness and fatigue crack behaviour of A3003/SUS304 lap friction stir welded joints

Hidehito Nishida, Tomo Ogura, Ryoichi Hatano, Hirotaka Kurashima, Misuo Fujimoto, Akio Hirose

Welding International　Vol. 31　No. 4　p. 268-277　2017/04　Research paper (scientific journal)

Improvement of Asymmetry in a Friction Stir Welded A3003/SUS 304 Lap Joint by Double-Pass Process

Ogura Tomo, Nishida Hidehito, Komiyama Yuta, Fujimoto Mitsuo, Hirose Akio

Journal of Light Metal Welding　Vol. 55　No. 2　p. 56-62　2017/02　Research paper (scientific journal)

Development of prediction technique of weld properties involving solidification and microstructural change

Kazuyoshi Saida, Hiroshige Inoue, Tomo Ogura, Hiroaki Mori, Toshiya Shibayanagi, Masakazu Shibahara

Yosetsu Gakkai Shi/Journal of the Japan Welding Society　Vol. 86　No. 1　p. 42-47　2017　Research paper (scientific journal)

Solidification cracking susceptibility of extra high-purity type 304 and 316 stainless steels for ferrite-free welding

Tomo Ogura, Toshimitsu Masaki, Kazuyoshi Saida, Kazutoshi Nishimoto, Kiyoshi Kikuchi, Junpei Nakayama

ESSC and DUPLEX 2017 - 9th European Stainless Steel Conference - Science and Market and 5th European Duplex Stainless Steel Conference and Exhibition　Vol. 2017-May　2017　Research paper (international conference proceedings)

Kinetics of phase transformation in weld heat affected zone of duplex stainless steels

Tomo Ogura, Yoshihiro Tanabe, Hiroshige Inoue, Yusuke Oikawa, Kazuyoshi Saida

ESSC and DUPLEX 2017 - 9th European Stainless Steel Conference - Science and Market and 5th European Duplex Stainless Steel Conference and Exhibition　Vol. 2017-May　2017　Research paper (international conference proceedings)

Dissimilar metal joining of A5052 aluminum alloy and AZ31 magnesium alloy using laser brazing

Tomo Ogura, Syunsuke Netsu, Tetsuya Yokochi, Kazuyoshi Saida

Materials Science Forum　Vol. 879　p. 2532-2536　2017　Research paper (international conference proceedings)

Decrease in process pressure for forming Au-to-Au joints via reduction reaction of Ag<inf>2</inf>O

Taro Inoue, Tomo Ogura, Akio Hirose

Materials Transactions　Vol. 58　No. 2　p. 127-130　2017　Research paper (scientific journal)

Seal spot welding of steel and aluminium alloy by resistance spot welding: dissimilar metal joining of steel and aluminium alloy by Zn insertion

Kenji Miyamoto, Shigeyuki Nakagawa, Chika Sugi, Tomo Ogura, Akio Hirose

Welding International　Vol. 30　No. 9　p. 675-687　2016/09/01　Research paper (scientific journal)

Microstructure and mechanical properties in laser brazing of A5052/AZ31 dissimilar alloys

Tomo Ogura, Tetsuya Yokochi, Shunsuke Netsu, Kazuyoshi Saida

Welding in the World　Vol. 60　No. 5　p. 1047-1054　2016/09/01　Research paper (scientific journal)

抵抗スポット溶接による鋼とAl合金の異種材料接合

中川 成幸, 宮本 健二, 小椋 智, 廣瀬 明夫

軽金属溶接　Vol. 54　No. 4　p. 135-146　2016/04

Quantitative Evaluation of Reheat Cracking Susceptibility in Weld Metal of Heat-Resistant Alloys

Ogura Tomo, Kubota Keisuke, Said Kazuyoshi, Nishimoto Kazutoshi, Hirata Hiroyuki

Preprints of the National Meeting of JWS　Vol. 2016　p. 120-121　2016

WELNET for Young Members

OGURA Tomo

JOURNAL OF THE JAPAN WELDING SOCIETY　Vol. 85　No. 5　p. 548-549　2016

Numerical analysis on the effect of interface structure on the tensile strength on the Fe-Al dissimilar metal joint by friction stir welding

SUZUKI Reo, HATANO Ryoichi, SANO Tomokazu, OGURA Tomo, HIROSE Akio, SHOJI Hiroto, OHATA Mitsuru

Preprints of the National Meeting of JWS　Vol. 2016　p. 156-157　2016

Effect of titanium insert on dissimilar material joining between aluminum alloy and magnesium alloy using laser brazing

OGURA Tomo, NETSU Shunsuke, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2016　p. 316-317　2016

Ductility-Dip Cracking Susceptibility in Laser Multipass Weld Metal of Alloy 690

Morikawa Yusuke, Ogura Tomo, Saida Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2016　p. 218-219　2016

Numerical Analysis on Solidification Cracking Susceptibility of Austenitic Stainless Steel Considering Solidification Mode and Morphology

Ogura Tomo, Ichikawa Shinya, Saida Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2016　p. 266-267　2016

Effect of Insert Metals on Dissimilar Friction Bonding of Titanium Alloy to Nickel Alloy

IMAI Tomoya, OGURA Tomo, SAIDA Kazuyoshi

Preprints of the National Meeting of JWS　Vol. 2016　p. 186-187　2016

Dissimilar joining techniques between aluminum alloy and steel with controlled interfacial microstructures

Tomo Ogura

Yosetsu Gakkai Shi/Journal of the Japan Welding Society　Vol. 85　No. 6　p. 593-598　2016　Research paper (scientific journal)

Numerical analysis on solidification cracking susceptibility of type 316 stainless steel considering solidification mode and morphology - Computer simulation of hot cracking by solidification/segregation models -

Tomo Ogura, Shinya Ichikawa, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 34　No. 3　p. 197-203　2016　Research paper (scientific journal)

Theoretical approach to influence of nitrogen on solidification cracking susceptibility of austenitic stainless steels - Computer simulation of hot cracking by solidification/segregation models

Tomo Ogura, Shinya Ichikawa, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 34　No. 3　p. 189-196　2016　Research paper (scientific journal)

Evaluation of ductility-dip cracking susceptibility in alloy 690 laser multipass weld metal by Varestraint test

Tomo Ogura, Yusuke Morikawa, Kazuyoshi Saida

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 34　No. 3　p. 181-188　2016　Research paper (scientific journal)

Effect of high strain rate deformation on hydrogen desorption behavior of 6061 and 7075 aluminum alloys

Keitaro Horikawa, Tomo Ogura, Yui Miyakawa, Go Endo, Makoto Takahashi, Hidetoshi Kobayashi

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 66　No. 2　p. 90-95　2016　Research paper (scientific journal)

Effect of high-speed impact compression on natural aging and subsequent artificial aging of a 6061 aluminum alloy

Tomo Ogura, Keitaro Horikawa, Yuki Kitani, Mami Miara, Seong Nyeong Kim, Equo Kobayashi, Tatsuo Sato, Hidetoshi Kobayashi

Materials Transactions　Vol. 57　No. 8　p. 1282-1286　2016　Research paper (scientific journal)

Enhanced properties of aluminum alloys using high strain rate deformation

Keitaro Horikawa, Tomo Ogura, Hidetoshi Kobayashi

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 66　No. 4　p. 192-199　2016　Research paper (scientific journal)

Microstructural control of interface and mechanical properties in dissimilar metal joining between aluminum alloy and steel

Tomo Ogura, Akio Hirose

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 66　No. 9　p. 503-511　2016　Research paper (scientific journal)

A method for studying the nano-scale stress-strain response of a material by nanoindentation

Naoki Fujisawa, Tomo Ogura, Akio Hirose

Materials Transactions　Vol. 57　No. 6　p. 1006-1009　2016　Research paper (scientific journal)

Effect of high-speed compression on age hardening behavior of a 7075 aluminum alloy

Go Endo, Keitaro Horikawa, Tomo Ogura, Kenichi Tanigaki, Hidetoshi Kobayashi

Proceedings of 24th International Symposium on Processing and Fabrication of Advanced Materials (PFAM24)　p. 297-303　2015/12　Research paper (international conference proceedings)

Strain rate dependency on pre-deformation for age-hardening in an Al-Mg-Si alloy

Keitaro Horikawa, Tomo Ogura, Hidetoshi Kobayashi

Proceedings of 24th International Symposium on Processing and Fabrication of Advanced Materials (PFAM24)　p. 304-309　2015/12　Research paper (international conference proceedings)

Effects of high-speed compression on hydrogen desorption behavior in 6061 and 7075 aluminum alloys

Yui Miyakawa, Keitaro Horikawa, Tomo Ogura, Hidetoshi Kobayashi

Proceedings of 24th International Symposium on Processing and Fabrication of Advanced Materials (PFAM24)　p. 280-286　2015/12　Research paper (international conference proceedings)

Laboratory of materials joining process, Division of material and manufacturing science

Tomo Ogura, Kazuyoshi Saida

Keikinzoku Yosetsu/Journal of Light Metal Welding and Construction　Vol. 53　No. 11　p. 23-26　2015/11　Research paper (scientific journal)

高速圧縮変形によるAl-Mg-Si合金の時効硬化性の改善

堀川 敬太郎, 木谷 祐貴, 小椋 智, 廣瀬 明夫, 高橋 誠, 小林 秀敏

軽金属　2015/10　Research paper (scientific journal)

Ultrasonic bonding of Cu/Ni and its thermal reliability

Yo Tanaka, Shinichi Fujiwara, Tomo Ogura, Tomokazu Sano, Akio Hirose

Welding International　Vol. 29　No. 4　p. 270-278　2015/04　Research paper (scientific journal)

Enhanced age hardening in an Al-Mg-Si alloy using high-speed compression

Keitaro Horikawa, Yuki Kitani, Tomo Ogura, Akio Hirose, Makoto Takahashi, Hidetoshi Kobayashi

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 65　No. 10　p. 498-502　2015　Research paper (scientific journal)

Hot cracking susceptibility of extra high-purity type 304 and 316 stainless steels - feasible study of ferrite-free welding

Tomo Ogura, Toshimitsu Masaki, Kazuyoshi Saida, Kazutoshi Nishimoto, Kiyoshi Kiuchi, Junpei Nakayama

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 33　No. 3　p. 295-308　2015　Research paper (scientific journal)

Effect of high-speed impact compression on natural aging and subsequent artificial aging of a 6061 aluminum alloy

Tomo Ogura, Keitaro Horikawa, Yuki Kitani, Mami Mihara, Seongnyeong Kim, Equo Kobayashi, Tatsuo Sato, Hidetoshi Kobayashi

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 65　No. 12　p. 617-621　2015　Research paper (scientific journal)

Effects of thermal history on the interface of A3003/SUS304 FSWed lap joints

Hidehito Nishida, Tomo Ogura, Ryoichi Hatano, Akio Hirose

Keikinzoku Yosetsu/Journal of Light Metal Welding and Construction　Vol. 53　No. 12　p. 510-515　2015　Research paper (scientific journal)

Enhanced age hardening in an Al-Mg-Si alloy using high-speed compression

Keitaro Horikawa, Yuki Kitani, Tomo Ogura, Akio Hirose, Makoto Takahashi, Hidetoshi Kobayashi

Materials Transactions　Vol. 56　No. 7　p. 1058-1062　2015　Research paper (scientific journal)

Joining of pure copper using Cu nanoparticles derived from CuO paste

Tomoyuki Fujimoto, Tomo Ogura, Tomokazu Sano, Makoto Takahashi, Akio Hirose

Materials Transactions　Vol. 56　No. 7　p. 992-996　2015　Research paper (scientific journal)

Effects of reducing solvent on copper, nickel, and aluminum joining using silver nanoparticles derived from a silver oxide paste

Tomo Ogura, Shinya Takata, Makoto Takahashi, Akio Hirose

Materials Transactions　Vol. 56　No. 7　p. 1030-1036　2015　Research paper (scientific journal)

Fracture toughness and fatigue crack growth behavior of A3003/SUS304 lap friction stir welded joints

Hidehito Nishida, Tomo Ogura, Ryoichi Hatano, Hirotaka Kurashima, Misuo Fujimoto, Akio Hirose

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 33　No. 1　p. 20-28　2015　Research paper (scientific journal)

Low-current resistance spot welding of pure copper using silver oxide paste

Yuichiro Suzuki, Tomo Ogura, Makoto Takahashi, Akio Hirose

Materials Characterization　Vol. 98　p. 186-192　2014/12　Research paper (scientific journal)

Formation of interfacial microstructure in a friction stir welded lap joint between aluminium alloy and stainless steel

T. Nishida, T. Ogura, H. Nishida, M. Fujimoto, M. Takahashi, A. Hirose

Science and Technology of Welding and Joining　Vol. 19　No. 7　p. 609-616　2014/10/01　Research paper (scientific journal)

Bondability of copper joints formed using a mixed paste of Ag<inf>2</inf>O and CuO for low-temperature sinter bonding

Tomo Ogura, Tomohiro Yagishita, Shinya Takata, Tomoyuki Fujimoto, Akio Hirose

Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals　Vol. 78　No. 7　p. 280-285　2014/07　Research paper (scientific journal)

多パス摩擦攪拌接合によるA3003/SUS304重ね継手の機械的特性

西田 英人, 倉嶋 寛貴, 藤本 光生, 小椋 智, 廣瀬 明夫

軽金属溶接　2014/07　Research paper (scientific journal)

Development of Resistance Spot Welding Process to Improve Joint Strength of High Strength Steel Sheets Using High Short Current "Pulse Spot Welding"

Taniguchi Koichi, Sawanishi Chikaumi, Ikeda Rinsei, Ogura Tomo, Hirose Akio

Bulletin of the Japan Institute of Metals　Vol. 53　No. 2　p. 63-65　2014/02

Phase Transformation in Duplex Stainless Steel Welds

Tanabe Yoshihiro, Ohnishi Kenta, Ogura Tomo, Saida Kazuyoshi, Nishimoto Kazutoshi, Oikawa Yusuke

Preprints of the National Meeting of JWS　Vol. 2014　p. 230-231　2014

Joining of aluminum using self-propagating high temperature synthesis reaction

Maruko Takaaki, Ogura Tomo, Sano Tomokazu, Hirose Akio

Preprints of the National Meeting of JWS　Vol. 2014　p. 290-291　2014

Influence of oxygen content in weld metal on properties of laser-arc hybrid welded mild steel

Takezaki Kaoru, Ogura Tomo, Sano Tomokazu, Hirose Akio, Mizutani Masami, Katayama Seiji, Ochiai Hikotaro

Preprints of the National Meeting of JWS　Vol. 2014　p. 328-329　2014

Evaluation of Joint Properties of Bonding Using Copper Oxide Pastes

Fujimoto Tomoyuki, Ogura Tomo, Sano Tomokazu, Hirose Akio

Preprints of the National Meeting of JWS　Vol. 2014　p. 270-271　2014

Metal-to-Ceramics Bonding Process Using Silver Oxide Paste

Asama Koji, Ogura Tomo, Sano Tomokazu, Hirose Akio

Preprints of the National Meeting of JWS　Vol. 2014　p. 260-261　2014

Influence of heat treatment on mechanical properties of a friction stir lap welded joint between A6061 aluminum alloy and SUS304

Hatano Ryoichi, Ogura Tomo, Nishida Hidehito, Fujimoto Mitsuo, Hirose Akio

Preprints of the National Meeting of JWS　Vol. 2014　p. 342-343　2014

Microscale evaluation of mechanical properties and the interfacial microstructures of friction stir welded aluminum alloy/stainless steel dissimilar lap joints

Tomo Ogura, Taichi Nishida, Hidehito Nishida, Mitsuo Fujimoto, Akio Hirose

Materials Science Forum　Vol. 783-786　p. 2786-2791　2014　Research paper (international conference proceedings)

Dissimilar metals joining of steel and aluminum alloy by resistance spot welding - Dissimilar metals joining of steel and aluminum alloy by Zn insertion

Kenji Miyamoto, Shigeyuki Nakagawa, Chika Sugi, Kenji Tsushima, Shingo Iwatani, Shinji Hojo, Tomo Ogura, Akio Hirose, F. Kojiro Kobayashi

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 32　No. 2　p. 83-95　2014　Research paper (scientific journal)

Analyses of precipitation behavior of L1<inf>2</inf> ordered phases in Al-Sc and Al-Zr alloys by 3DAP and Monte Carlo simulation

Ken Atsuta, Tomo Ogura, Tatsuo Sato

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 64　No. 11　p. 576-581　2014　Research paper (scientific journal)

Mechanical properties and microstructures of resistance spot welded DP980 steel joints using pulsed current pattern

C. Sawanishi, T. Ogura, K. Taniguchi, R. Ikeda, K. Oi, K. Yasuda, A. Hirose

Science and Technology of Welding and Joining　Vol. 19　No. 1　p. 52-59　2014/01　Research paper (scientific journal)

Point defect clusters induced by high-speed deformation and its effect on age-hardening in 6061 aluminum alloys

Keitaro Horikawa, Yuki Kitani, Tomo Ogura, Akio Hirose, Makoto Takahashi, Hidetoshi Kobayashi

Materials Science Forum　Vol. 794-796　p. 778-783　2014　Research paper (international conference proceedings)

Interfacial reaction during dissimilar friction stir lap welding of aluminum alloy to stainless steel

Tomo Ogura, Taichi Nishida, Makoto Takahashi, Hidehito Nishida, Mitsuo Fujimoto, Akio Hirose

Materials Science Forum　Vol. 794-796　p. 389-394　2014　Research paper (international conference proceedings)

Effect of impact compression on age hardening behavior of aluminum alloys

Yuki Kitani, Keitaro Horikawa, Hidetoshi Kobayashi, Kenichi Tanigaki, Tomo Ogura, Akio Hirose

Applied Mechanics and Materials　Vol. 566　p. 409-414　2014　Research paper (international conference proceedings)

Nano-scale microstructural analysis of aluminum alloys by three-dimensional atom probe

Shoichi Hirosawa, Tomo Ogura, Ai Serizawa, Yoshiki Komiya, Tatsuo Sato

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 64　No. 11　p. 542-550　2014　Research paper (scientific journal)

Seal spot welding of steel and aluminum alloy by resistance spot welding - Dissimilar metals joining of steel and aluminum alloy by Zn insertion

Kenji Miyamoto, Shigeyuki Nakagawa, Chika Sugi, Tomo Ogura, Akio Hirose

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 32　No. 2　p. 95-106　2014　Research paper (scientific journal)

Effect of Zn insertion on diffusion bonded joint properties of steel and aluminum alloy - Dissimilar metals joining of steel and aluminum alloy by Zn insertion

Miyamoto Kenji, Nakagawa Shigeyuki, Tsushima Kenji, Katayama Tadaaki, Iwatani Shingo, Hojo Shinji, Ogura Tomo, Hirose Akio, Kobayashi F. Kojiro

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 32　No. 1　p. 15-30　2014　Research paper (scientific journal)

Study on anisotropy of mechanical properties of A3003/SUS304 lap FSWed joints

Hidehito Nishida, Mitsuo Fujimoto, Tomo Ogura, Yuta Komiyama, Akio Hirose

Keikinzoku Yosetsu/Journal of Light Metal Welding and Construction　Vol. 52　No. 2　p. 21-28　2014　Research paper (scientific journal)

Improvement of strength and ductility of an Al-Zn-Mg alloy by controlling grain size and precipitate microstructure with Mn and Ag addition

Tomo Ogura, Takanori Otani, Akio Hirose, Tatsuo Sato

Materials Science and Engineering A　Vol. 580　p. 288-293　2013/09/05　Research paper (scientific journal)

Effects of asymmetry of joint on joint properties in a friction stir welded A3003/SUS304 lap joint

KOMIYAMA Yuta, OGURA Tomo, HIROSE Akio, NISHIDA Hidehito, FUJIMOTO Mitsuo

Preprints of the National Meeting of JWS　Vol. 93　p. 106-107　2013/08/12

Effects of the oxygen content in weld metal on the butt-jointed mild steel by Disc Laser-CO_2 Arc hybrid welding

TAKEZAKI Kaoru, OGURA Tomo, SANO Tomokazu, HIROSE Akio, MIZUTANI Masami, KATAYAMA Seiji, OCHIAI Hikotaro, KIMURA Ryosuke, ONO Shozo

Preprints of the National Meeting of JWS　Vol. 93　p. 30-31　2013/08/12

Interfacial microstructure observation focused on its formation process in a friction stir welded A3003/SUS 304 lap jointl

OGURA Tomo, NISHIDA Taichi, HIROSE Akio, TAKAHASHI Makoto, NISHIDA Hidehito, FUJIMOTO Mitsuo

Preprints of the National Meeting of JWS　Vol. 93　p. 104-105　2013/08/12

Preliminary experiments on high-speed welding of aluminum alloy using single mode fiber laser

MATSUYAMA Norihiro, SANO Tomokazu, OGURA Tomo, HIROSE Akio, TORIGOE Isao, MIKAME Kazuhisa

Preprints of the National Meeting of JWS　Vol. 93　p. 34-35　2013/08/12

Effect of pulsed current on the joint strength of resistance spot welding joints of high tensile steel

MINEMATSU Nobuyuki, OGURA Tomo, HIROSE Akio, SAWANISHI Chikaumi, TANIGUCHI Koichi, IKEDA Rinsei, OI Kenji, YASUDA Koichi

Preprints of the National Meeting of JWS　Vol. 93　p. 338-339　2013/08/12

Resistance Spot Welding of Pure Copper Using Silver Nanoparticles and Silver Oxide Fineparticles

SUZUKI Yuichiro, OGURA Tomo, HIROSE Akio

Preprints of the National Meeting of JWS　Vol. 93　p. 340-341　2013/08/12

Effects of interfacial microstructures on joint strength in friction stir spot welded 6061 aluminum alloy/zinc coated steel joints

Masaki Yamamoto, Tomo Ogura, Ryoji Ohashi, Mitsuo Fujimoto, Akio Hirose

Keikinzoku Yosetsu/Journal of Light Metal Welding and Construction　Vol. 51　No. 6　p. 25-34　2013/06　Research paper (scientific journal)

Microscale evaluation of mechanical properties of friction stir welded A6061 aluminium alloy/304 stainless steel dissimilar lap joint

T. Ogura, T. Nishida, Y. Tanaka, H. Nishida, S. Yoshikawa, M. Fujimoto, A. Hirose

Science and Technology of Welding and Joining　Vol. 18　No. 2　p. 108-113　2013/02　Research paper (scientific journal)

Dissimilar lap joining of thick plates of A3003 aluminum alloy to SUS304 stainless steel by Friction Stir Welding

H. Nishida, H. Kurashima, M. Fujimoto, H. Nishikawa, T. Ogura, A. Hirose

PROCEEDINGS OF THE 1ST INTERNATIONAL JOINT SYMPOSIUM ON JOINING AND WELDING　p. 237-+　2013　Research paper (international conference proceedings)

Controlled nano-clusters in the vicinity of grain boundaries and improved strength and ductility of Al-Zn-Mg based alloys

Tomo Ogura, Tatsuo Sato

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 63　No. 5　p. 196-203　2013　Research paper (scientific journal)

Effects of solvents in the polyethylene glycol series on the bonding of copper joints using Ag<inf>2</inf>O Paste

Shinya Takata, Tomo Ogura, Eiichi Ide, Toshiaki Morita, Akio Hirose

Journal of Electronic Materials　Vol. 42　No. 3　p. 507-515　2013　Research paper (scientific journal)

Effect of polyethylene glycols with different polymer chain lengths on the bonding process involving in situ formation of silver nanoparticles from Ag <inf>2</inf>O

Tomohiro Yagishita, Tomo Ogura, Akio Hirose

Materials Transactions　Vol. 54　No. 6　p. 866-871　2013　Research paper (international conference proceedings)

Selection of particle size and solvent to lower the pressure required for metal-to-metal bonding using silver nanoparticle pastes

Tomo Ogura, Yosuke Konaka, Eichi Ide, Toshiaki Morita, Akio Hirose

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 31　No. 4　2013　Research paper (scientific journal)

Interfacial microstructure evolution and thermal reliability of copper/nickel joints formed by ultrasonic bonding

Yo Tanaka, Shinichi Fujiwara, Tomo Ogura, Tomokazu Sano, Akio Hirose

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 31　No. 4　2013　Research paper (scientific journal)

Bondability of copper joints formed using a mixed paste of Ag<inf>2</inf>O and CuO for low-temperature sinter bonding

Tomo Ogura, Tomohiro Yagishita, Shinya Takata, Tomoyuki Fujimoto, Akio Hirose

Materials Transactions　Vol. 54　No. 6　p. 860-865　2013　Research paper (international conference proceedings)

Ultrasonic bonding of Cu/Ni and its thermal reliability

Yo Tanaka, Shinichi Fujiwara, Tomo Ogura, Tomokazu Sano, Akio Hirose

Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society　Vol. 31　No. 1　p. 66-74　2013　Research paper (scientific journal)

銀ナノ粒子を用いた通電焼結接合法

鈴木 裕一郎, 小椋 智, 廣瀬 明夫

第19回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2013)論文集　2013/01　Research paper (other academic)

酸化銀ペーストを用いた接合における接合界面組織解析

高田 慎也, 小椋 智, 廣瀬 明夫

第19回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2013)論文集　2013/01　Research paper (other academic)

Interfacial microstructure observation and nanoindentation measurements in mild steel/ HT780 clad plate

C. Sawanishi, T. Ogura, H. Sumi, K. Oi, K. Yasuda, A. Hirose

Materials Science and Technology (United Kingdom)　Vol. 28　No. 12　p. 1459-1464　2012/12　Research paper (scientific journal)

Initial Bondability Evaluation after Cu/Ni Ultrasonic Bonding

Shinichi Fujiwara, Yo Tanaka, Tomo Ogura, Tomokazu Sano, Akio HIrose

The Transactions of the Institute of Electronics, Information and Communication Engineers C　Vol. 95　No. 11　p. 271-278　2012/11　Research paper (scientific journal)

Interfacial microstructure in aluminum bonding using Ag2O paste

TAKATA Shinya, OGURA Tomo, HIROSE Akio

Preprints of the National Meeting of JWS　Vol. 91　p. 80-81　2012/09/03

Low-Energy Resistance Spot Welding Using Silver Nanoparticle

SUZUKI Yuichiro, OGURA Tomo, HIROSE Akio

Preprints of the National Meeting of JWS　Vol. 91　p. 82-83　2012/09/03

Effect of Zn-based alloy insert on bondability in diffusion bonded aluminum joints

YAMAMOTO Masaki, OGURA Tomo, HIROSE Akio, MIYAMOTO Kenji, SUGI Chika, NAKAGAWA Shigeyuki, UEHARA Yoshitaka, NAMBU Toshikazu

Preprints of the National Meeting of JWS　Vol. 91　p. 102-103　2012/09/03

Ultrasonic bonding of dissimilar metals with complete solid solubility and its thermal reliability

TANAKA Yo, OGURA Tomo, SANO Tomokazu, HIROSE Akio, FUJIWARA Shinichi

Preprints of the National Meeting of JWS　Vol. 91　p. 96-97　2012/09/03

Microstructural analysis in the resistance spot welded joint with pulsed current pattern for high strength steel sheets

MINEMATSU Nobuyuki, SAWANISHI Chikaumi, OGURA Tomo, HIROSE Akio, TANIGUCHI Koichi, IKEDA Rinsei, OI Kenji, YASUDA Koichi

Preprints of the National Meeting of JWS　Vol. 91　p. 300-301　2012/09/03

Effects of tool shape on joining process and strength in friction stir spot welded aluminum alloy/zinc coated steel joints

KOMIYAMA Yuta, OMINE Kodai, OGURA Tomo, HIROSE Akio, OHASHI Ryoji, FUJIMOTO Mitsuo

Preprints of the National Meeting of JWS　Vol. 91　p. 220-221　2012/09/03

Effects of Au and Pd additions on joint strength, electrical resistivity, and ion-migration tolerance in low-temperature sintering bonding using Ag <inf>2</inf>O paste

Takeyasu Ito, Tomo Ogura, Akio Hirose

Journal of Electronic Materials　Vol. 41　No. 9　p. 2573-2579　2012/09　Research paper (scientific journal)

Partitioning evaluation of mechanical properties and the interfacial microstructure in a friction stir welded aluminum alloy/stainless steel lap joint

Tomo Ogura, Yuichi Saito, Taichi Nishida, Hidehito Nishida, Takumi Yoshida, Noriko Omichi, Mitsuo Fujimoto, Akio Hirose

Scripta Materialia　Vol. 66　No. 8　p. 531-534　2012/04　Research paper (scientific journal)

Evaluation of Microstructures and Properties of a Sintered Silver Joint Using Ag_2O Paste

TAKATA Shinya, YAGISHITA Tomohiro, OGURA Tomo, HIROSE Akio

Preprints of the National Meeting of JWS　Vol. 90　p. 68-69　2012/03/15

摩擦プロセスを用いたアルミニウム合金／鋼接合の界面形成機構の解明とその熱的安定性

小椋 智, 廣瀬 明夫

大阪大学グローバルCOEプログラム「構造・機能先進材料デザイン教育研究拠点」平成23年度成果報告書　2012/03　Research paper (bulletin of university, research institution)

Formation of high-density dislocations and hardening in femtosecond-laser-shocked silicon

Masashi Tsujino, Tomokazu Sano, Tomo Ogura, Masayuki Okoshi, Narumi Inoue, Norimasa Ozaki, Ryosuke Kodama, Kojiro F. Kobayashi, Akio Hirose

Applied Physics Express　Vol. 5　No. 2　2012/02　Research paper (scientific journal)

CuとNiの超音波接合とその接合部の熱的信頼性評価

田中 陽, 藤原 伸一, 小椋 智, 佐野 智一, 廣瀬 明夫

第18回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2012)論文集　2012/02　Research paper (other academic)

フェムト秒レーザ衝撃加工による純鉄の硬化

松田 朋己, 佐野 智一, 塚田 貴大, 小椋 智, 小林 紘二郎, 廣瀬 明夫

第18回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2012)論文集　2012/02　Research paper (other academic)

酸化銀ペーストを用いた接合において還元溶剤が銅ニッケルおよびアルミニウムの接合性に及ぼす影響

高田 慎也, 小椋 智, 井出 英一, 守田 俊章, 廣瀬 明夫

第18回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2012)論文集　Vol. 18　p. 181-186　2012/02　Research paper (other academic)

Mechanical Characterization of Nano/microscale Structures by Nanoindentation Technique

Ogura Tomo

Yosetsu Gakkai Shi/Journal of the Japan Welding Society　Vol. 81　No. 8　p. 671-676　2012　Research paper (scientific journal)

Effects of pre-aging on bendability of an asymmetric-rolled Al-Mg-Si alloy

Tomo Ogura, Akio Hirose, Tatsuo Sato

Materials Science Forum　Vol. 706-709　p. 377-382　2012　Research paper (international conference proceedings)

NANOCLUSTER FORMATION BEHAVIOR IN Al-Zn-Mg ALLOYS WITH MICROALLOYING ELEMENTS AND IMPROVED MECHANICAL PROPERTIES

Tatsuo Sato, Tomo Ogura

PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON ALUMINUM ALLOYS (ICAA13)　p. 1051-1056　2012　Research paper (international conference proceedings)

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF FRICTION STIR WELDED ALUMINUM ALLOY/STAINLESS STEEL LAP JOINTS

Tomo Ogura, Taichi Nishida, Hidehito Nishida, Syuhei Yoshikawa, Takumi Yoshida, Noriko Omichi, Mitsuo Fujimoto, Akio Hirose

PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON ALUMINUM ALLOYS (ICAA13)　p. 647-652　2012　Research paper (international conference proceedings)

Interfacial bonding behavior between silver nanoparticles and gold substrate using molecular dynamics simulation

Tomo Ogura, Masumi Nishimura, Hiroaki Tatsumi, Wataru Takahara, Akio Hirose

Materials Transactions　Vol. 53　No. 12　p. 2085-2090　2012　Research paper (scientific journal)

Low temperature sintering bonding process using ag nanoparticles derived from Ag<inf>2</inf>O for packaging of high-temperature electronics

Akio Hirose, Naoya Takeda, Yosuke Konaka, Hiroaki Tatsumi, Yusuke Akada, Tomo Ogura, Eiichi Ide, Toshiaki Morita

Materials Science Forum　Vol. 706-709　p. 2962-2967　2012　Research paper (international conference proceedings)

Improvement of bondability in Cu/Cu joint using Ag2O pasteby controlling reducing solvent

Shinya Takata, Tomo Ogura, Akio Hirose, Ide Eiichi, Toshiaki Morita

Proc. of ECO-MATE2011　2011/11　Research paper (international conference proceedings)

Effect of welding parameters on bondability of Al alloy/zinc coated steel joint by friction stir joining

Masaki Yamamoto, Tomo Ogura, Ryoji Ohashi, Mitsuo Fujimoto, Akio Hirose

Proc. of ECO-MATES 2011　2011/11　Research paper (international conference proceedings)

Interfacial microstructure observation of A3003/SUS304FSW lap joint

Taichi Nishida, Tomo Ogura, HidehitoNishida, Takumi Yoshida, Noriko Ohmichi, Mitsuo Fujimoto, Akio Hirose

Proc. of ECO-MATES 2011　2011/11　Research paper (international conference proceedings)

Interfacial microstructure and evaluation of the thermalreliability in Cu/Ni ultrasonic bonded joints

Yoh Tanaka, Shinichi Fujiwara, Tomo Ogura, Tomokazu Sano, Akio Hirose

Proc. of ECO-MATES 2011　2011/11　Research paper (international conference proceedings)

Selection of particle size and solvent for reducing applied pressure in metal-to-metal bonding using silver nanoparticle paste

Tomo Ogura, Yosuke Konaka, Eichi Ide, Toshiaki Morita, Akio Hirose

64th Annual Assembly of International Institute of Welding　2011/07

Metal-to-Metal Bonding Using Ag Nanoparticles Derived from Ag2O Particles for Electronics Assembly

Akio Hirose, Takeyasu Ito, Tomo Ogura

64th Annual Assembly of International Institute of Welding　2011/07

Dissimilar Joining of Magnesium Alloys and Steel Using Zinc Insert

Akio Hirose, Takahiro Tachibana, Shinji Hojo, Shingo Iwatani, Tomo Ogura, Kojiro F.Kobayashi, Shigeyuki Nakagawa, Kenji Miyamoto

International Workshop on Welding and Joining of Mg alloys　2011/07

構造・機能先進材料の実用化プロセス－界面組織制御による高機能接合プロセス－

廣瀬 明夫, 佐野 智一, 小椋 智

大阪大学グローバルCOEプログラム「構造・機能先進材料デザイン教育研究拠点」平成22年度成果報告書　2011/03　Research paper (bulletin of university, research institution)

酸化銀ペーストを用いた銀ナノ粒子その場生成接合プロセスにおけるポリエチレングリコールの影響

柳下朋大, 小椋智, 廣瀬明夫

第17回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2011)論文集　2011/02　Research paper (other academic)

Effects of Ag and Pd addition on mechanical property and ion-migration tolerance in low temperature sintering bonding using Ag<inf>2</inf>O paste

A. Hirose, T. Itou, T. Ogura

Technical Proceedings of the 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011　Vol. 2　p. 426-429　2011　Research paper (international conference proceedings)

Microstructure and mechanical property of 5000 series aluminum stud joint with zinc insert using friction welding

Taichi Nishida, Tomo Ogura, Mitsuo Fujimoto, Akio Hirose

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 61　No. 7　p. 322-327　2011　Research paper (scientific journal)

Effects of microalloying tin and combined addition of silver and tin on the formation of precipitate free zones and mechanical properties in Al-Zn-Mg alloys

Tomo Ogura, Shoichi Hirosawa, Akio Hirose, Tatsuo Sato

Keikinzoku/Journal of Japan Institute of Light Metals　Vol. 61　No. 7　p. 316-321　2011　Research paper (scientific journal)

Improvement of ion-migration tolerance by addition of Pd microparticle in the bonding using Ag2O paste

Takeyasu Itou, Tomo Ogura, Akio Hirose

Materials Science & Technology 2010 Conference (MS&T10)　2010/10

Sintering and Interfacial Bonding Mechanisms in Bonding Process through In-situ Formation of Ag Nanoparticles Using Ag2O Particles (Invited Talk)

Akio Hirose, Naoya Takeda, Tomo Ogura, Toshiaki Morita, Eiichi Ide

Materials Science & Technology 2010 Conference (MS&T10)　2010/10

Molecular dynamics simulation of interfacial bonding behavior between Ag nanoparticles and Au substrate

Tomo Ogura, Masumi Nishimura, Wataru Takahara, Akio Hirose

Materials Science & Technology 2010 Conference (MS&T10)　2010/10

Surface Hardening of Iron Using Femtosecond Laser-Driven Shock

Takahiro Tsukada, Tomokazu Sano, Tomo Ogura, Masayuki Okoshi, Narumi Inoue, Kojiro Kobayashi, Akio Hirose

Materials Science & Technology 2010 Conference (MS&T10)　2010/10

Effect of Particle Size on Bondability in Joining Using Silver Nanoparticles

Yosuke Konaka, Naoya Takeda, Hiroaki Tatsumi, Tomo Ogura, Eiichi Ide, Toshiaki Morita, Akio Hirose

Materials Science & Technology 2010 Conference (MS&T10)　2010/10

Improvement of the bondability in dissimilar joint of steel and aluminum alloy using Zn-based alloys coating

Keisuke Ueda, Tomo Ogura, Shumpei Nishiuchi, Kenji Miyamoto, Toshikazu Nanbu, Akio Hirose

Materials Science & Technology 2010 Conference (MS&T10)　2010/10

Microstructure and mechanical properties of 5000 system Al stud joints with Zn insert using friction welding

Taichi Nishida, Tomo Ogura, Mitsuo Fujimoto, Akio Hirose

Proc.12th Inter. Conf. on Aluminum Alloys (ICAA12)　2010/09　Research paper (international conference proceedings)

The effect of Zn-based alloys coating on bondability of resistance spot welding of steel/aluminum alloy dissimilar joint

Keisuke Ueda, Tomo Ogura, Shumpei Nishiuchi, Kenji Miyamoto, Toshikazu Nanbu, Akio Hirose

Proc.12th Inter. Conf. on Aluminum Alloys (ICAA12)　2010/09　Research paper (international conference proceedings)

Effects of Microalloying Sn and (Ag+Sn) on Precipitation in the Vicinity of Grain Boundaries in Al-Zn-Mg Alloys

Tomo Ogura, Shoichi Hirosawa, Akio Hirose, Tatsuo Sato

Proc.12th Inter. Conf. on Aluminum Alloys (ICAA12)　2010/09　Research paper (international conference proceedings)

Nano-scale Evaluation of Interfacial Reaction Layers in Aluminum and Steel Dissimilar Metals Joints with Alloying Elements using Nanoindentation Technique

Tomo Ogura, Keisuke Ueda, Yuichi Saito, Akio Hirose

Proc.12th Inter. Conf. on Aluminum Alloys (ICAA12)　2010/09　Research paper (international conference proceedings)

界面ナノ構造解析とその特性評価による異種金属材料接合部の高信頼化組織制御

小椋 智, 廣瀬 明夫

大阪大学グローバルCOEプログラム「構造・機能先進材料デザイン教育研究拠点」平成21年度成果報告書　2010/03　Research paper (bulletin of university, research institution)

銀ナノ粒子接合における接合性に及ぼす粒径効果の影響

小中 洋輔, 武田 直也, 小椋 智, 井出 英一, 守田 俊章, 廣瀬 明夫

第16回エレクトロニクスにおけるマイクロ接合・実装技術シンポジウム(Mate2010)論文集　2010/02　Research paper (other academic)

Effects of Alloying Si and Cu to Al Alloys on Interfacial Reaction and Joint Strength in Dissimilar Metals Joints of Al Alloys to Steel

Akio Hirose, Hidetaka Umeshita, Yuichi Saito, Tomo Ogura

NEW FRONTIERS IN LIGHT METALS　p. 513-522　2010　Research paper (international conference proceedings)

Interfacial Bonding Mechanism of Silver Metallo-organic Nanoparticles to Metal Substrates

Naoya Takeda, Hiroaki Tatsumi, Yusuke Akada, Tomo Ogura, Eiichi Ide, Toshiaki Morita, Akio Hirose

Materials Science & Technology 2009 Conference (MS&T09)　2009/10

Femtosecond laser-driven shock hardening of iron

Tomokazu Sano, Toru Nakashima, Takahiro Tsukada, Tomo Ogura, Masayuki Okoshi, Narumi Inoue, Akio Hirose

Materials Science & Technology 2009 Conference (MS&T09)　2009/10

Effects of Alloying Elements on Interfacial Microstructure and Bondability in Dissimilar Metals Joints of Aluminum Alloys to Steels

Yuichi Saito, Tomo Ogura, Keisuke Ueda, Akio Hirose

Materials Science & Technology 2009 Conference (MS&T09)　2009/10

Quantitative Characterization of Interfacial Reaction Layers in Dissimilar Metals Joints of Aluminum Alloys to Steel Using Nanoindentation Technique

Tomo Ogura, Yuichi Saito, Keisuke Ueda, Akio Hirose

Materials Science & Technology 2009 Conference (MS&T09)　2009/10

Al合金/鋼異材接合部の高信頼化組織制御のための界面ナノ構造解析と微小領域特性評価

小椋 智, 廣瀬 明夫

グローバルCOEプログラム「構造・機能先進材料デザイン教育研究拠点」平成20年度成果報告書　2009/03　Research paper (bulletin of university, research institution)

Femtosecond laser shock-hardening of iron and steels

Sano Tomokazu, Nakashima Toru, Tsukada Takahiro, Ogura Tomo, Hirose Akio, Okoshi Masayuki, Inoue Narumi

Preprints of the National Meeting of JWS　Vol. 2009　p. 417-417　2009

Quantitative analyses of interfacial reaction layers in dissimilar joints of aluminum alloy/steel using nanoindentation

Saito Yuichi, Ueda Keisuke, Ogura Tomo, Hirose Akio

Preprints of the National Meeting of JWS　Vol. 2009　p. 106-106　2009

A novel metal-to-metal bonding process through in-situ formation of Ag nanoparticles using Ag<inf>2</inf>O microparticles

Akio Hirose, Hiroaki Tatsumi, Naoya Takeda, Yusuke Akada, Tomo Ogura, Eiichi Ide, Toshiaki Morita

Journal of Physics: Conference Series　Vol. 165　2009　Research paper (international conference proceedings)