In situ Formed (Cu_<0.6Zr_<0.25>Ti_<0.15>)_<93>Nb_7 Bulk Metallic Glass Composites

この論文にアクセスする

この論文をさがす

著者

抄録

An <i>in situ</i> formed (Cu<SUB>0.6</SUB>Zr<SUB>0.25</SUB>Ti<SUB>0.15</SUB>)<SUB>93</SUB>Nb<SUB>7</SUB> bulk metallic glass (BMG) composite was prepared successfully. The ductile Nb-rich crystalline phase with a dendritic structure disperses homogeneously in the BMG matrix. The mean size of the dendritic Nb phase is about 5∼10 μm. For Cu-Zr-Ti-Nb glassy ribbons, the additions of Nb element cause the glass transition and crystallization onset temperature to shift to much higher values, and improve the thermal stability of the glassy phase. For the <i>in situ</i> formed (Cu<SUB>0.6</SUB>Zr<SUB>0.25</SUB>Ti<SUB>0.15</SUB>)<SUB>93</SUB>Nb<SUB>7</SUB> bulk metallic glass composites, its glass transition temperature and crystallization onset temperature is almost the same as those of the Nb-free Cu<SUB>60</SUB>Zr<SUB>25</SUB>Ti<SUB>15</SUB> BMG, implying that almost all the added Nb element precipitates from the melt upon cooling. The (Cu<SUB>0.6</SUB>Zr<SUB>0.25</SUB>Ti<SUB>0.15</SUB>)<SUB>93</SUB>Nb<SUB>7</SUB> BMG composite also presents a good combination of excellent mechanical properties. The compressive fracture strength and fracture elongation are 2130 MPa and 6.4%, respectively. The increase in elongation results from the homogeneous dispersion of the ductile and dendritic Nb-rich crystalline phase in the BMG matrix.

収録刊行物

  • Materials transactions

    Materials transactions 45(7), 2346-2350, 2004-07-20

    公益社団法人 日本金属学会

参考文献:  20件中 1-20件 を表示

各種コード

  • NII論文ID(NAID)
    10013337530
  • 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
    7016103
  • 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 
ページトップへ