Effects of Zinc Insert and Al Content in Mg Alloy on the Bondability in Dissimilar Joints of Steel and Magnesium Alloys

• TACHIBANA Takahiro

  Division of Materials and Manufacturing Science, Graduate school of Engineering, Osaka University

• HOJO Shinji

  Division of Materials and Manufacturing Science, Graduate school of Engineering, Osaka University

• IWATANI Shingo

  Division of Materials and Manufacturing Science, Graduate school of Engineering, Osaka University

• OGURA Tomo

  Division of Materials and Manufacturing Science, Graduate school of Engineering, Osaka University

• NAKAGAWA Shigeyuki

  NISSAN MOTOR CO., LTD.

• MIYAMOTO Kenji

  NISSAN MOTOR CO., LTD.

• HIROSE Akio

  Division of Materials and Manufacturing Science, Graduate school of Engineering, Osaka University

抄録

The effects of zinc insert and Al content in Mg alloy on the bondability in steel/Mg alloy joints were evaluated using SEM, EDX, XRD and tensile test. A cold rolled steel plate (SPCC), a zinc coated steel (GI), Mg-3mass% Al alloy (AZ31) and Mg-6mass% Al alloy (AZ61) were used in this study. The bondability of the joints using zinc insert were significantly improved, because Zn-Mg eutectic reaction efficiently removes the oxide films on the Mg alloy. While a thin Fe-Al type interfacial reaction layer was formed discontinuously in GI/AZ31 joint, a Fe-Al and Al-Mg combined interfacial reaction layer was continuously formed in GI/AZ61 joint. These microstructural changes leads to mechanical properties of the joints, that is, the joint strength was improved from 40MPa in GI/AZ31 joint to 70MPa in GI/AZ61 joint.

収録刊行物

• 溶接学会論文集

  溶接学会論文集 27 (2), 183s-186s, 2009

  一般社団法人 溶接学会

キーワード

• Zinc Insert
• Steel
• Magnesium alloy
• Diffusion Bonding
• Eutectic Reaction

詳細情報

• CRID: 1390282679701459968
• NII論文ID: 10030149153
• NII書誌ID: AN1005067X
• DOI: 10.2207/qjjws.27.183s
• ISSN: 24348252
• ISSN: 02884771
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可