Stabilized shear banding of ZrCu-based metallic glass composites under tensile loading

被引:42
|
作者
Wu, Fu-Fa [1 ,2 ]
Chan, K. C. [1 ]
Li, Shi-Tao [2 ]
Wang, Gang [3 ]
机构
[1] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Adv Mfg Technol Res Ctr, Kowloon, Hong Kong, Peoples R China
[2] Liaoning Univ Technol, Sch Mat Sci & Engn, Jinzhou 121001, Peoples R China
[3] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
基金
中国国家自然科学基金;
关键词
BULK AMORPHOUS-ALLOYS; HIGH-STRENGTH; MATRIX COMPOSITES; MECHANICAL-PROPERTIES; DUCTILE DENDRITES; DEFORMATION; MICROSTRUCTURE; PLASTICITY; FRACTURE; SIZE;
D O I
10.1007/s10853-013-7909-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The tensile plastic deformation behavior of ZrCu-based metallic glass composites with various crystalline volume fractions was investigated. A tensile plastic strain of more than 10 % was achieved in a metallic glass composite with a crystalline volume fraction of 32.6 %. It was found that the B2 phase can effectively activate the formation of multiple shear bands, which significantly stabilize the tensile plastic deformation of metallic glass composites. A critical volume fraction for stable tensile plastic deformation was determined. In addition to the volume fraction, the density of the stress concentration sites and the distribution of the B2 phase were also found to be key factors controlling the stable plastic deformation of ZrCu-based BMG composite.
引用
收藏
页码:2164 / 2170
页数:7
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