Effects of Ti on the Thermal Stability and Glass-Forming Ability of Ni-Nb Glassy Alloy

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著者

    • Zhang Wei ZHANG Wei
    • Inoue Superliquid Glass Project, Exploratory Research for Advanced Technology, Japan Science and Technology Corporation
    • Inoue Akihisa INOUE Akihisa
    • Inoue Superliquid Glass Project, Exploratory Research for Advanced Technology, Japan Science and Technology Corporation

抄録

The thermal stability, glass-forming ability (GFA) and mechanical properties of the Ni<SUB>60</SUB>Nb<SUB>40−<I>x</I></SUB>Ti<I><SUB>x</SUB></I> (<I>x</I>=0 to 40) glassy alloys have been investigated. As the Ti content increases, the supercooled liquid region <I>ΔT</I><SUB>x</SUB> (= <I>T</I><SUB>x</SUB>−<I>T</I><SUB>g</SUB>) and reduced glass transition temperature (<I>T</I><SUB>g</SUB>⁄<I>T</I><SUB>l</SUB>) increase, the maximum <I>ΔT</I><SUB>x</SUB> of 54 K and <I>T</I><SUB>g</SUB>⁄<I>T</I><SUB>l</SUB> of 0.622 are obtained at 22.5%Ti and 15%Ti, respectively, and then the <I>ΔT</I><SUB>x</SUB> and the <I>T</I><SUB>g</SUB>⁄<I>T</I><SUB>l</SUB> gradually decrease. The Ni<SUB>60</SUB>Nb<SUB>25</SUB>Ti<SUB>15</SUB> glassy alloy was formed in a rod form with a diameter up to 1.5 mm. The <I>T</I><SUB>g</SUB> and <I>T</I><SUB>x</SUB> of the bulk glassy alloy were 859 K and 906 K, respectively. The Vicker’s hardness (<I>Hv</I>), Young’s modulus (<I>E</I>), compressive fracture strength (σ<SUB>c,f</SUB>) and compressive plastic elongation (ε<SUB>c,p</SUB>) were 833, 167 GPa, 3085 MPa and 1.8%, respectively, for the bulk alloy. There is a tendency for fracture strength to increase with increasing glass transition temperature (<I>T</I><SUB>g</SUB>). It is therefore interpreted that the high strength is due to strong bonding nature among the constituent elements.

収録刊行物

  • Materials transactions

    Materials transactions 43(9), 2342-2345, 2002-09-01

    公益社団法人 日本金属学会

参考文献:  28件中 1-28件 を表示

被引用文献:  17件中 1-17件 を表示

各種コード

  • NII論文ID(NAID)
    10012326480
  • 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
    6313479
  • 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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