共 1 条
- [1] The mechanism of void formation, void growth, and tensile fracture in an alloy consisting of two ductile phases[J] . M. A. Greenfield,H. Margolin. Metallurgical Transactions . 1972 (10)
THE SUPERPLASTICITY AND DEFORMATION MECHANISM OF ULTRALIGHT BINARY Mg-8wt%Li ALLOY
被引：2
作者：
F.R. Cao and J.Z. Cui(Department of Metalforming
机构：
关键词：
superplasticity;
magnesium-lithium alloy;
dynamic recrystallization;
grain growth;
cavity;
D O I：
暂无
中图分类号：
TG146 [有色金属及其合金];
学科分类号：
080502 ;
摘要：
The maximum elongation-to-failure of 960% has been achieved in the Mg-8wt%Li alloy. It is shown by measurement of true stress-strain curve and microstructure observation that dynamic recrystallization takes place during superplastic deformation, which turns the banded grains into equiaxed grains. It is postulated by theoretical analysis that during superplastic deformation,continuous introduction of lattice dislocations into the phase interfaces contributes to the superplasticity in this alloy.During superplastic deformation,grain growth and cavity nucleation at α phase grain boundaries have also been observed.
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页码：527 / 530
页数：4
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