Establishment of interface-controlled bonding process of dissimilar materials with natural oxide films by the combination of friction process and micro-tensile test.

• Project/Area Number: 24760599
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Material processing/treatments
• Research Institution: Osaka University
• Principal Investigator: OGURA TOMO 大阪大学, 工学(系)研究科(研究院), 助教 (90505984)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 異種金属接合 / 組織制御 / 溶接・接合 / 接合・溶接

Outline of Final Research Achievements

Bonding process of dissimilar materials with natural oxide films has established by the combination of friction process and micro-tensile test. A sound joint that fractured at the base metal was obtained through the interfacial reaction layer of intermetallic compounds (IMCs) with nano-order thickness in aluminum alloy/steel dissimilar friction stir welding. The joining between these materials was achieved through a continuous flow of the stirred aluminum alloy into the mixed layers and the resultant growth of the ultrafine IMCs due to the heat induced by the friction between the tool and the specimen. Equiaxed aluminum grains were observed at the interface of the specimen after it was fractured, indicating that the interface deformed only slightly during the micro-tensile test. It is found that tensile strength of the joint enables to increase by suitable age-hardening.

Research Products

• [Journal Article] Interfacial Reaction during Dissimilar Friction Stir Lap Welding of Aluminum Alloy to Stainless Steel (2014)
  • Author(s): Tomo Ogura, Taichi Nishida, Makoto Takahashi, Hidehito Nishida, Mitsuo Fujimoto and Akio Hirose
  • Journal Title: Materials Science Forum Volume: 794-796 Pages: 389-394
  • DOI: 10.4028/www.scientific.net/msf.794-796.389
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Formation of interfacial microstructure in a friction stir welded lap joint between aluminum alloy and stainless steel (2014)
  • Author(s): Taichi Nishida, Tomo Ogura, Hidehito Nishida, Mitsuo Fujimoto, Makoto Takahashi and Akio Hirose
  • Journal Title: Science and Technology of Welding and Joining Volume: 19 Issue: 7 Pages: 609-616
  • DOI: 10.1179/1362171814y.0000000232
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Mechanical properties and microstructures of resistance spot welded DP980 steel joints using a pulsed current pattern (2014)
  • Author(s): C. Sawanishi, T. Ogura, K. Taniguchi, R. Ikeda, K. Oi, K. Yasuda and A, Hirose
  • Journal Title: Science and Technology of Welding and Joining Volume: 19 Issue: 1 Pages: 52-59
  • DOI: 10.1179/1362171813y.0000000165
  • Peer Reviewed
• [Journal Article] Microscale evaluation of mechanical properties and the interfacial microstructures of friction stir welded aluminum alloy/stainless steel dissimilar lap joints (2014)
  • Author(s): Tomo Ogura, Taichi Nishida, Hidehito Nishida, Mitsuo Fujimoto and Akio Hirose
  • Journal Title: Materials Science Forum Volume: 783-786 Pages: 2786-2791
  • DOI: 10.4028/www.scientific.net/msf.783-786.2786
  • Peer Reviewed
• [Presentation] ダブルパスプロセスによるA3003/SUS304摩擦攪拌重ね継手の非対称性の改善 (2014)
  • Author(s): 小椋 智，小宮山 雄太，西田 英人，藤本 光生，廣瀬 明夫，
  • Organizer: （一社）軽金属学会 第127回軽金属学会秋期大会
  • Place of Presentation: 東京工業大学大岡山キャンパス（東京都目黒区）
  • Year and Date: 2014-11-15 – 2014-11-16
• [Presentation] Evaluation of Asymmetry in a Friction Stir Welded Aluminum Alloy/Stainless Steel Lap Joint (2014)
  • Author(s): Tomo Ogura, Yuta Komiyama, Hidehito Nishida, Mitsuo Fujimoto, Makoto Takahashi, Akio Hirose
  • Organizer: Materials Science & Technology 2014 Conference (MS&T14)
  • Place of Presentation: Pittsburgh, Pennsylvania, USA
  • Year and Date: 2014-10-12 – 2014-10-16
• [Presentation] 6000系アルミニウム合金／SUS304重ね摩擦攪拌接合における継手特性に及ぼす熱処理の影響 (2014)
  • Author(s): 波多野 遼一，小椋 智，西田 英人，藤本 光生，廣瀬 明夫
  • Organizer: （一社）溶接学会 平成26年度秋季全国大会
  • Place of Presentation: 黒部市宇奈月国際会館「セレネ」(富山県黒部市）
  • Year and Date: 2014-09-10 – 2014-09-12
• [Presentation] 重ね摩擦攪拌接合によるアルミニウム合金と鋼の異種金属接合 (2014)
  • Author(s): 小椋 智，廣瀬 明夫
  • Organizer: 一社）溶接学会 東北支部，溶接学会 若手会員の会 第26回溶接・接合研究会
  • Place of Presentation: 情報・産業プラザ（宮城県仙台市）
  • Year and Date: 2014-07-18
• [Presentation] Interfacial reaction during dissimilar friction stir lap welding of aluminum alloy to stainless steel (2014)
  • Author(s): T. Ogura, T. Nishida, M. Takahashi, H. Nishida, M. Fujimoto and A. Hirose
  • Organizer: The 14th International Conference on Aluminum Alloys (ICAA14)
  • Place of Presentation: Trondheim, Norway
  • Year and Date: 2014-06-15 – 2014-06-19
• [Presentation] Microscale evaluation of mechanical properties and the interfacial microstructures of friction stir welded aluminum alloy/stainless steel dissimilar lap joints (2013)
  • Author(s): Tomo Ogura, Taichi Nishida, Hidehito Nishida, Mitsuo Fujimoto, Akio Hirose
  • Organizer: International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS(THERMEC’2013)
  • Place of Presentation: RIO HOTEL, Las Vegas, USA
  • Invited
• [Presentation] Microscale Evaluation of Mechanical Properties and the Interfacial Microstructures in Friction Stir Welded Aluminum lloy/Stainless Steel Lap Joints (2013)
  • Author(s): Tomo Ogura, Taichi Nishida, Hidehito Nishida, Mitsuo Fujimoto, Akio Hirose
  • Organizer: International Joint Symposiumon Joining and Welding(IJS-JW2013)
  • Place of Presentation: Hotel Hankyu Expo Park, Osaka, Japan
• [Presentation] Interfacial Microstructure and Its Formation Process of a Friction Stir Welded A3003/SUS 304 Lap Joint (2013)
  • Author(s): Tomo Ogura, Taichi Nishida, Makoto Takahashi, Hidehito Nishida, Mitsuo Fujimoto and Akio Hirose
  • Organizer: Materials Science & Technology 2013 (MS&T13)
  • Place of Presentation: Palais des congres de Montreal, Montreal, Quebec, Canada
• [Presentation] Nano-scale stress-strain response of metals and alloys by nanoindentation (2013)
  • Author(s): Naoki Fujisawa, Tomo Ogura and Akio Hirose
  • Organizer: 第153回大会，（公社）日本金属学会
  • Place of Presentation: 金沢大学
• [Presentation] 摩擦攪拌接合を用いたA3003/SUS304の重ね継手における接合界面形成プロセスに着目した界面組織観察 (2013)
  • Author(s): 小椋 智，西田 太一，西田 英人，藤本 光生，高橋 誠，廣瀬 明夫
  • Organizer: （一社）溶接学会
  • Place of Presentation: 岡山理科大学
• [Presentation] 摩擦攪拌接合を用いたA3003/SUS304の重ね継手における接合界面形成プロセスの検討 (2012)
  • Author(s): 小椋 智，西田 太一，西田 英人，吉川 脩平，吉田 巧，大道 典子，藤本 光生，高橋 誠，廣瀬 明夫
  • Organizer: 第151回大会，（社）日本金属学会
  • Place of Presentation: 愛媛大学城北キャンパス
• [Presentation] 摩擦攪拌接合を用いたA3003/SUS304の重ね継手における接合界面組織観察と形成プロセス (2012)
  • Author(s): 小椋 智，西田 太一，西田 英人，吉川 脩平，吉田 巧，大道 典子，藤本 光生，高橋 誠，廣瀬 明夫
  • Organizer: 第123回大会，（社）軽金属学会
  • Place of Presentation: 千葉工業大学津田沼キャンパス