Rolling-induced microstructure change in Zr65Al7.5Ni10Cu12.5Ag5 bulk metallic glass

被引：6
|
作者：
Zhou Wei [1 ]
Lu BinFeng [1 ]
Kong LingTi [1 ]
Li JinFu [1 ]
Zhou YaoHe [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2011年 / 56卷 / 36期
基金：
中国国家自然科学基金;
关键词：
metallic glass; free volume; plastic deformation; nanocrystallization; FREE-VOLUME EVOLUTION; STRUCTURAL RELAXATION; MECHANICAL-PROPERTIES; AMORPHOUS ALLOY; DEFORMATION; REDUCTION; BEHAVIOR; FLOW;
D O I：
10.1007/s11434-011-4783-6
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The microstructures and free-volume evolutions of as-cast and pre-annealed Zr65Al7.5Ni10Cu12.5Ag5 bulk metallic glasses during rolling deformation have been investigated. No phase transformation is detected in the as-cast/rolled specimen. However, the structural stability of the glass against plastic deformation is worse after pre-annealing, indicated by nanocrystallization in pre-annealed/rolled specimens with large deformation degrees. Moreover, with increasing deformation degree, the free-volume content in a pre-annealed/rolled specimen increases at a lower average rate than that in an as-cast/rolled specimen.
引用
收藏
页码：3948 / 3951
页数：4
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