Enhanced Mechanical Properties by Cyclic Compression in TiNb/Zr-Based Metallic Glassy Composite

被引：7
作者：
Chu, Z. H.
Kato, H. [1 ]
Xie, G. Q. [1 ]
Yuan, G. Y. [2 ]
Ding, W. J. [2 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Shanghai Jiao Tong Univ, Key State Lab Met Matrix Composite, Shanghai 200240, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2013年 / 44A卷 / 10期
基金：
中国国家自然科学基金;
关键词：
MATRIX COMPOSITES; DEFORMATION;
D O I：
10.1007/s11661-013-1821-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A significant enhancement of yield strength and large plasticity was obtained in TiNb/Zr55Cu30Al10Ni5 composite by cyclic compression at the yield point. This phenomenon resulted from the cooperation of the metallic crystalline alloy TiNb and metallic glassy matrix Zr55Cu30Al10Ni5 in the composite. It was found that a large dislocation density of TiNb was produced during cyclic compression, which resulted in the increase of the strength. Meanwhile, the improvement of plasticity of the composite benefited from the propagation of excess shear bands in the glassy matrix, which were produced during the cyclic compression process. Hence, the collective effect of both resulted in the improved yield strength and large plasticity of the composite.
引用
收藏
页码：4595 / 4600
页数：6
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