中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 15 No. 4 August 2005 |
LI Wei-huo(李維火)1, SHEK Chung-hong(石燦鴻)2
（1. National Microgravity Laboratory, Institute of Mechanics,
Chinese Academy of Sciences, Beijing 100080, China;
2. Department of Physics and Materials Science, City University of Hong Kong,
Hong Kong）
Abstract: A kind of novel Ti-based composites was developed by introducing different amounts of carbon element to the Ti50Cu23Ni20Sn7 bulk metallic glass forming alloys. The thermal stability and microstructural evolution of the composites were investigated. Room temperature compression tests reveal that the composite samples with 1% and 3%(mass fraction) carbon additions have higher fracture strength and obvious plastic strain of 2195MPa, 3.1% and 1913MPa, 1.3% respectively, compared with those of the corresponding carbon-free Ti50Ni20Cu23Sn7 alloys. The deformation mechanisms of the composites with improved mechanical properties were also discussed.
Key words: casting; bulk metallic glasses; Vein pattern; mechanical properties; composites
