Novel superplasticity of supercooled liquid for bulk amorphous alloys

被引:0
|
作者
Inoue, A
Zhang, T
机构
关键词
bulk amorphous alloy; glass transition; supercooled liquid; viscous flow; superplasticity; zirconium-based alloy; lanthanum-based alloy; iron-based alloy;
D O I
暂无
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The finding of new bulk amorphous alloys with large glass-forming ability and wide supercooled liquid region before crystallization has enabled the research on the deformation behavior of the supercooled liquid. As a result, it was found that the supercooled liquid has a high strain-rate sensitivity exponent of 1.0, extremely large elongations reaching about 150000 % and ultrahigh strain-rate superplasticity of 1x10(6) s(-1) which have not been obtained for any crystalline alloys. The excellent superplastic characteristics are promising for future development as a new type of superplastic metallic material.
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页码:197 / 205
页数:9
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