ほう酸アルミニウムウィスカ強化Al-Cu-Si合金の機械的性質に及ぼすSi量の影響 Effect of the variation of Si content on mechanical properties of aluminum-borate whisker reinforced Al-Cu-Si alloys

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The influence of the variation of the silicon content in the matrix on mechanical properties was investigated for aluminum-borate whisker reinforced aluminum alloys. An age-hardenable Al–4.5%Cu–Si alloys were selected as the matrix, in which silicon content was varied from 0% to 12%. Young's modulus and 0.2% proof stress of the composites increased with the silicon content in the matrix, however, tensile strength of the composites decreased. The silicon content in the matrix had little influence on age-hardening behavior and interfacial reaction of the composites. Crystallization of silicon particles around the whiskers was frequently observed. And fracture of whiskers with silicon particles on the fracture plane was often observed after tensile fracture. The whiskers surrounded by silicon crystals increased with the silicon content in the matrix, and the fracture of the whisker was caused by the brittle fracture of the silicons around the whiskers. Increase in tensile strength was not found for the aluminum-borate whisker reinforced Al–4.5%Cu–12%Si alloy, being consistent with the results of the observation.

収録刊行物

  • 軽金属

    軽金属 47(4), 208-213, 1997-04-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003795255
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4184917
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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