Interfacial Microstructure of Aluminum/Metallic Glass Lap Joints Fabricated by Magnetic Pulse Welding

• Watanabe Mitsuhiro

  Materials and Structures Laboratory, Tokyo Institute of Technology

• Kumai Shinji

  Department of Materials Science and Engineering, Tokyo Institute of Technology

• Hagimoto Go

  Department of Materials Science and Engineering, Tokyo Institute of Technology

• Zhang Qingsheng

  Institute for Materials Research, Tohoku University

• Nakayama Koji

  Institute for Materials Research, Tohoku University

抄録

Magnetic pulse welding was applied to the lap joining of crystalline pure aluminum and metallic glass (Zr₄₈Cu₃₆Al₈Ag₈ and Cu₅₀Zr_42.5Al_7.5) and interfacial microstructure was examined. The metallic glass fractured in brittle manner in conventional plate layout. However, Al/metallic glass joints were successfully obtained without fragmentation of brittle metallic glass by setting a soft aluminum plate as a shock absorber behind the metallic glass. The welding interface exhibited characteristic wavy morphology as well as that of metal/metal joints. Thin layer with medium chemical composition of the metallic glass and Al was also produced at the welding interface. No chemical composition change took place in the area of 2 μm and more away from each matrix/intermediate layer interface. Also, no hardness change of Al matrix was detected in the area of 2 μm and more away from Al/intermediate layer interface. Hardness of metallic glass matrix close to the welding interface was not constant, however, TEM observation revealed that the metallic glass matrix retained the amorphous structure after the welding. These obtained results are considered to indicate that the metallic glass did not crystallize after the magnetic pulse welding.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 50 (6), 1279-1285, 2009

  公益社団法人 日本金属学会

キーワード

• dissimilar materials welding
• pure aluminum
• metallic glass
• magnetic pulse welding
• welding interface

詳細情報

• CRID: 1390001204250236928
• NII論文ID: 10024815564
• NII論文ID: 130004454276
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.me200835
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 10236938
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10236938
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/50/6/50_ME200835/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
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• 抄録ライセンスフラグ: 使用不可