Alloying behavior at welding interface in dissimilar metal joint fabricated by friction stir process

• Project/Area Number: 21760578
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Material processing/treatments
• Research Institution: University of Yamanashi (2010); Tokyo Institute of Technology (2009)
• Principal Investigator: WATANABE Mitsuhiro University of Yamanashi, 大学院・医学工学総合研究部, 助教 (90532036)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 接合・溶接 / 構造・機能材料 / 溶接・接合 / 摩擦撹拌スポット接合 / 異種金属接合 / アルミニウム / 鋼 / 金属間化合物 / 拡散 / 材料加工・処理 / 鉄

Research Abstract

Lap joining of a pure aluminum plate and a low carbon steel plate was performed using friction stir spot welding. Welding was achieved for all dwell times. Intermetallic compound layer was produced along the welding interface. Precise backscattered electron image observation and energy dispersive X-ray spectroscopy analysis revealed that the intermetallic compound layer consisted of an Al_<13>Fe_4 phase layer and an Al_5Fe_2 phase layer. The thickness of the layers increased in proportion to the square root of the dwell time.

Research Products

• [Journal Article] Growth Manner of Intermetallic Compound Layer Produced at Friction Stir Spot Welded Aluminum/Steel Lap Joint (2011)
  • Author(s): Mitsuhiro Watanabe, Keyan Feng, Yoshio Nakamura, Shinji Kumai
  • Journal Title: Materials Transactions Vol.52 Pages: 953-959
  • Peer Reviewed
• [Journal Article] Growth Manner of Intennetallic Compound Layer Produced at Friction Stir Spot Welded Aluminum/Steel Lap Joint (2011)
  • Author(s): Mitsuhiro Watanabe
  • Journal Title: Materials Transactions Volume: Vol.52(Accepted)
  • Peer Reviewed
• [Journal Article] Growth Manner of Intermetallic Compound Layer Produced at Friction Stir Spot Welded Al/Steel Lap Joint (2010)
  • Author(s): Mitsuhiro Watanabe, Keyan Feng, Yoshio Nakamura, Shinji Kumai
  • Journal Title: Proceedings of the 12^<th> International Conference on Aluminum Alloys (ICAA12) Pages: 984-987
  • Peer Reviewed
• [Journal Article] Effect of tool shape on interfacial microstructure of friction stir spot welded aluminum/steel lap joint (2010)
  • Author(s): Mitsuhiro Watanabe, Hiroshi Matsumoto, Keyan Feng, Yoshio Nakamura, Shinji Kumai
  • Journal Title: Proceedings of the 8th International Symposium of Friction Stir Welding Pages: 1-6
• [Journal Article] Growth Manner of Intermetallic Compound Layer Produced at Friction Stir Spot Welded Al/Steel Lap Joint (2010)
  • Author(s): Mitsuhiro Watanabe
  • Journal Title: Proceedings of the 12^<th> International Conference of Aluminum Alloys (ICAA12) Pages: 984-987
  • Peer Reviewed
• [Journal Article] Effect of tool shape on interfacial microstructure of friction stir spot welded aluminum/steel lap joint (2010)
  • Author(s): Mitsuhiro Watanabe
  • Journal Title: Proceedings of the 8^<th> International Symposium of Friction Stir Welding Pages: 1-6
• [Presentation] Growth Manner of Intermetallic Compound Layer Produced at Friction Stir Spot Welded Aluminum/Steel Lap Joint (2010)
  • Author(s): Mitsuhiro Watanabe, Keyan Feng, Yoshio Nakamura, Shinji Kumai
  • Organizer: The 12^<th> International Conference on Aluminum Alloys (ICAA12)
  • Place of Presentation: Yokohama, Japan.
  • Year and Date: 2010-09-08
• [Presentation] Growth Manner of Intermetallic Compound Layer Produced at Friction Stir Spot Welded Al/Steel Lap Joint (2010)
  • Author(s): Mitsuhiro Watanabe
  • Organizer: The 12^<th> International Conference on Aluminium Alloys (ICAA12)
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2010-09-08
• [Presentation] Effect of tool shape on inter facial microstructure of friction stir spot welded aluminum/steel lap joint (2010)
  • Author(s): Mitsuhiro Watanabe, Hiroshi Matsumoto, Keyan Feng, Yoshio Nakamura, Shinji Kumai
  • Organizer: The 8^<th> International Symposium of Fricti on Stir Welding
  • Place of Presentation: Timmendorfer Strand, Germany.
  • Year and Date: 2010-05-20
• [Presentation] Effect of tool shape on interfacial microstructure of friction stir spot welded aluminum/steel lap joint (2010)
  • Author(s): Mitsuhiro Watanabe
  • Organizer: The 8^<th> International Symposium of Friction Stir Welding
  • Place of Presentation: Timmendorfer Strand, Germany
  • Year and Date: 2010-05-20
• [Presentation] 摩擦撹拌スポット接合したアルミニウム/鋼接合材の接合界面組織と強度 (2009)
  • Author(s): 渡邉満洋, 馮科研, 熊井真次, 中村吉男
  • Organizer: 軽金属学会第117回終期大会
  • Place of Presentation: 東京
  • Year and Date: 2009-11-14
• [Presentation] 摩擦撹拌スポット接合したアルミニウム/鋼接合材の接合界面組織と強度 (2009)
  • Author(s): 渡邉満洋
  • Organizer: 第117回秋期軽金属学会
  • Place of Presentation: 電気通信大学(東京)
  • Year and Date: 2009-11-14