High-loading Velocity Tensile Properties and Fracture Behavior of SiCp/AC4CH Composite

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This study conducted a high-loading velocity tensile test for a SiCp/AC4CH composite and an AC4CH alloy (Al-6.7%Si-0.3%Mg alloy). Microstructures of both materials before and after tensile testing were carefully examined with an optical microscope and SEM. Experimental results demonstrate that the ultimate tensile strength (UTS) of the SiCp/AC4CH composite increased with increasing loading velocity up to 10 m·s<SUP>-1</SUP>. Compared to the AC4CH alloy, the fracture elongation of the SiCp/AC4CH composite is more sensitive to the strain rate. The AC4CH alloy yield strength (YS) shows more sensitivity than that of UTS with increasing strain rate, especially in the range of loading velocity higher than 1 m·s<SUP>−1</SUP>. The composite failed by coalescence of microcracking/microvoiding. The ratio of broken SiC particles increases with increasing loading velocity.

収録刊行物

  • Materials transactions

    Materials transactions 45(5), 1738-1742, 2004-05-20

    公益社団法人 日本金属学会

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各種コード

  • NII論文ID(NAID)
    10013071981
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    6951639
  • 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  NDL  J-STAGE 
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