Superplasticity of nanostructured metallic materials obtained by methods of severe plastic deformation

被引：3
|
作者：
Valiev, R. Z. [1 ]
Islamgaliev, R. K.
Yunusova, N. F.
机构：
[1] Inst Phys Perspect Mat, Ufa, Russia
[2] Ufa State Aircraft Engn Univ, Ufa, Russia
来源：
METAL SCIENCE AND HEAT TREATMENT | 2006年 / 48卷 / 1-2期
关键词：
D O I：
10.1007/s11041-006-0042-x
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A review of primarily the authors' own works on the effect of nano- and submicrocrystalline structure obtained by methods of severe plastic deformation, such as equal channel angular pressing and severe plastic deformation by torsion, on the superplasticity of alloys at relatively low temperature and/or high deformation rate is presented. Special features of the microstructure (grain size, grain-boundary angles, phase composition) required for manifestation of the effect of enhanced superplasticity in ultrafine-grained metals are considered. Special attention is devoted to the effect of grain refinement and development of grain boundary sliding in low-temperature and high-temperature superplasticity.
引用
收藏
页码：47 / 53
页数：7
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