Nanocrystalline structure formation during severe plastic deformation in metals and their deformation behaviour

被引:42
作者
Salishchev, G
Zaripova, R
Galeev, R
Valiakhmetov, O
机构
[1] Institute for Metals Superplasticity Problems, Ufa, 450001
来源
NANOSTRUCTURED MATERIALS | 1995年 / 6卷 / 5-8期
关键词
D O I
10.1016/0965-9773(95)00208-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Severe plastic deformation at temperatures below 0.4-0.5 T-m was used to obtain submicrocrystalline (SMC) and nanocrystalline (NC) materials. The mechanical behaviour of titanium and ferritic steel with ultra fine grained structure is characterized by reduction of deformation hardening, a uniform elongation stage, and an increase in stress relaxation rate at room temperature. A decrease of deformation hardening is observed in titanium. On the basis of structural investigations, the changes of mechanical properties of NC materials are explained.
引用
收藏
页码:913 / 916
页数:4
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