Microstructural evolution of quasi-single phase alloy during superplastic deformation

被引：3
|
作者：
Bang, W [1 ]
Ha, TK [1 ]
Chang, YW [1 ]
机构：
[1] Pohang Univ Sci & Technol, CAAM, Nam Ku, Pohang 790784, Kyungbook, South Korea
来源：
SUPERPLASTICITY IN ADVANCED MATERIALS, ICSAM-2000 | 2001年 / 357-3卷
关键词：
internal variable theory; load relaxation; precipitate free zone; superplasticity;
D O I：
10.4028/www.scientific.net/MSF.357-359.171
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Flow shifts and changes in microstructure were investigated for superplastic deformation of 7475 Al alloy. The recently proposed internal variable theory of structural superplasticity has been applied to the results of mechanical test. Deformed microstructure was observed using a TEM to check the validity of the constitutive relations. Accommodation mechanism for grain boundary sliding was also examined through the microchemical analysis of deformed microstructures.
引用
收藏
页码：171 / 176
页数：6
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