Strain-rate sensitivity of ultrafine-grained materials

被引：0
|
作者：
Höppel, HW [1 ]
May, J [1 ]
Eisenlohr, P [1 ]
Göken, A [1 ]
机构：
[1] Univ Erlangen Nurnberg, Dept Mat Sci & Engn, Erlangen, Germany
来源：
ZEITSCHRIFT FUR METALLKUNDE | 2005年 / 96卷 / 06期
关键词：
ultrafine-grained metals; Severe Plastic Deformation; Equal Channel Angular Pressing (ECAP); strain-rate sensitivity; aluminium; alpha-iron;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The strain-rate sensitivity of commercial purity Aluminium (Al 99.5) and of alpha-iron, with both conventional (CG) and ultrafine (UFG) grain sizes, are investigated by compression and tension tests at different temperatures. Microstructural investigations were performed before and after compression testing in order to investigate the microstructural stability. Pronounced strain rate sensitivity was found for UFG Al at room temperature as well as at elevated temperatures, while for UFG alpha-iron an enhanced strain-rate sensitivity was found only at elevated temperatures.
引用
收藏
页码：566 / 571
页数：6
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