Preparation and mechanical properties of Zr-based containing Co bulk metallic glass

被引：0
|
作者：
Wu, XF [1 ]
Zhang, HF
Qiu, KQ
Yang, HC
Hu, ZQ
机构：
[1] Liaoning Inst Technol, Dept Mat, Jinzhou 121001, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
[3] Northeastern Univ, Coll Mat & Met, Shenyang 110004, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2004年 / 33卷 / 12期
关键词：
Zr-based bulk metallic glasses; Co addition; glass forming ability; mechanical properties;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Zr-Ti-Cu-Ni-Be-Co bulk metallic glass were prepared by water quenching method. The phase composition was analyzed by XRD, the surface and fracture morphology of the sample after compression was observed by SEM, and the temperature of glass transformation and crystallization and the thermal stability was measured by using thermal analyzer. The effect of Co addition on glass forming ability, thermal stability and mechanical properties of Zr-Ti-Cu-Ni-Be-Co alloy was investigated. The results indicated that all alloy containing Co have a distinct glass transformation point and wide overcooling liquid region. Zr38Ti17Cu10.5Co12Be22.5 alloy has a largest DeltaT compared with that of Zr41Ti14Cu12.5Ni10Be22.5 alloy; Co addition significantly improved mechanical properties of Zr-Ti-Cu-Ni-Be BMGs, compressive facture strengths sigma(f) of Zr-Ti-Cu-Ni-Be alloys containing more than 10% Co content exceed 2000 MPa, sigma(f) of Zr38Ti17Co22.5Be22.5 alloy reaches 2230 MPa, it is increase by 23% as compared with that of Zr41Ti14Cu12.5Ni10Be22.5.
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页码：1317 / 1320
页数：4
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