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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料物理与化学. 材料学
办公地点：大连理工大学新三束实验室410
联系方式：0411-84706400
电子邮箱：yhli@dlut.edu.cn
Glass-forming ability and mechanical properties of Zr-Ni-Al bulk metallic glasses with high Zr content
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论文类型：会议论文
发表时间：2012-08-01
收录刊物：EI、CPCI-S、Scopus
卷号：750
页面范围：306-+
关键字：Bulk metallic glasses; glass-forming ability; mechanical properties; Zr-Ni-Al alloys
摘要：The thermal stability and glass-forming ability (GFA) of Zr70Ni30-xAlx (x = 5 - 19) metallic alloys were investigated. Alloy with x = 8 has the largest critical diameter (d(c)) of 2 mm in the alloy series, which possesses the largest supercooled liquid region, T-rg and gamma value, simultaneously. Further addition of 2 - 4 at.% Nb to Zr70Ni22Al8 alloy by replacement of Zr increases the d(c) up to 6 mm. In addition, Zr70Ni22Al8 bulk metallic glass exhibits large compressive plastic strain of 13.8% with yielding stress of 1547 MPa and Young's modulus of 79 GPa. Addition of Nb increases the strength but lowers the plasticity.