Microstructures and Mechanical Properties of Double-Friction Stir Welded 2219 Al Alloy

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The microstructure, mechanical properties and thermal stability of double friction stir welded 2219 Al alloy were investigated. The grain size of the double friction stir zone was about 0.8 μm, which was smaller than that of the single friction stir zone. The dissolution of the very fine strengthening particles resulted in a decrease of the hardness values in the single and double friction stir zone. Following the post weld heat treatment (PWHT), the grain structure of the double-FSW joints was found to be more unstable than that of the single-FSW joints, owing to the finer grain size, higher fraction of sub-grains and lower particle density.

収録刊行物

  • Materials transactions

    Materials transactions 49(4), 885-888, 2008-04-01

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10021146171
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    13459678
  • NDL 記事登録ID
    9447707
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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