Formation and Mechanical Strength of Bulk Glassy Alloys in Zr-Al-Co-Cu System

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By choosing a new alloy composition of Zr<SUB>55</SUB>Al<SUB>20</SUB>Co<SUB>20</SUB>Cu<SUB>5</SUB>, we succeeded in forming bulk glassy alloys in rod and sheet forms by copper mold casting. The maximum diameter and sheet thickness were 5 mm and 3 mm, respectively. The <I>T</I><SUB>g</SUB>, <I>ΔT</I><SUB>x</SUB> and <I>T</I><SUB>g</SUB>⁄<I>T</I><SUB>l</SUB> are 750 K, 80 K and 0.60, respectively, being independent of sample thickness. The bulk alloy sheet exhibits Young’s modulus of 92 GPa, elastic elongation limit of 2.1% and high tensile strength of 1960 MPa. These strength values are considerably higher than those for the other Zr-based bulk glassy alloys reported up to date. The synthesis of the new Zr-based bulk glassy alloy with high glass-forming ability and high tensile strength approaching 2000 MPa is expected to result in a future extension of application fields as a high strength material.

収録刊行物

  • Materials transactions

    Materials transactions 43(5), 1250-1253, 2002-05-01

    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)
    10012324040
  • 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
    6181593
  • 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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