Effects of Cr addition on glass-forming ability and mechanical properties of Cu–Zr–Al bulk metallic glass

被引：0
|
作者：
W. Zhou
L. T. Kong
J. F. Li
Y. H. Zhou
机构：
[1] Shanghai Jiao Tong University,State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering
来源：
Journal of Materials Science | 2012年 / 47卷
关键词：
Shear Band; Metallic Glass; Bulk Metallic Glass; Supercooled Liquid Region; Multiple Shear Band;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Effects of a small amount addition of Cr on glass-forming ability (GFA) and mechanical properties of Cu–Zr–Al bulk metallic glass were investigated. The GFA of (Cu46Zr46Al8)100−xCrx (x = 0, 0.25, 0.5, 0.75, and 1 at%) alloys tends to decrease with the increasing Cr content. A good correlation between the GFA and the temperature interval of supercooled liquid region ΔTx or parameter γ exists in these alloys. Addition of an appropriate amount of Cr can significantly improve the plasticity of the alloys. The bulk metallic glass with x = 0.5 exhibits promising mechanical properties with high fracture strength of 1870 MPa and obvious plastic strain of 2.23%.
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页码：4996 / 5001
页数：5
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