Super plastic bulk metallic glasses at room temperature

被引：1078

作者：

Liu, Yan Hui ^{[1
]}

Wang, Gang ^{[1
]}

Wang, Ru Ju ^{[1
]}

Zhao, De Qian ^{[1
]}

Pan, Ming Xiang ^{[1
]}

Wang, Wei Hua ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

SCIENCE | 2007年 / 315卷 / 5817期

关键词：

D O I：

10.1126/science.1136726

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：

In contrast to the poor plasticity that is usually observed in bulk metallic glasses, super plasticity is achieved at room temperature in ZrCuNiAl synthesized through the appropriate choice of its composition by controlling elastic moduli. Microstructures analysis indicates that the super plastic bulk metallic glasses are composed of hard regions surrounded by soft regions, which enable the glasses to undergo true strain of more than 160%. This finding is suggestive of a solution to the problem of brittleness in, and has implications for understanding the deformation mechanism of, metallic glasses.

引用

页码：1385 / 1388

页数：4

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