Processing by equal-channel angular pressing: Potential for achieving superplasticity

被引：0
|
作者：
Furukawa, M [1 ]
Nemoto, M [1 ]
Horita, Z [1 ]
Langdon, TG [1 ]
机构：
[1] Fukuoka Univ Educ, Dept Technol, Munakata, Fukuoka 8114192, Japan
来源：
SUPERPLASTICITY-CURRENT STATUS AND FUTURE POTENTIAL | 2000年 / 601卷
关键词：
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Equal-channel angular (ECA) pressing is a processing procedure whereby a very severe plastic strain is imposed on a sample without any change in the cross-sectional dimensions of the material. This processing method leads to a substantial grain refinement, producing grains which are within the submicrometer or even the nanometer scale. This paper discusses the potential for using this method to prepare materials for superplasticity. The results demonstrate that it is possible to achieve superplastic deformation in selected materials subjected to ECA pressing and, in addition, there is the possibility of extending the superplastic region so that it occurs at very rapid strain rates.
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页码：365 / 370
页数：6
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