Strain Hardening of ZK60 Magnesium Alloys

被引：0
|
作者：
Cho, Jae-Hyung [1 ]
Kang, Suk-Bong [1 ]
Han, Sang-Ho [1 ]
机构：
[1] Korea Inst Mat Sci, Chang Won 641831, Gyeongnam, South Korea
来源：
MAGNESIUM TECHNOLOGY 2012 | 2012年
关键词：
ZK60; magnesium alloys; compression; texture and microstructure; EBSD; MG-ZN; UNIAXIAL COMPRESSION; TEXTURE DEVELOPMENT; ZIRCONIUM ALLOYS; DEFORMATION; MICROSTRUCTURE; POLYCRYSTALS; DIFFRACTION; SIMULATION; SLIP;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
ZK60(Mg-Zn-Zr) alloys possessed precipitate hardening behavior during aging, and the frequency and size of rod and disc shaped precipitates changed with aging. Strain hardening and texturing of ZK60 alloys were investigated during uniaxial warm compression. Uniaxial warm compression tests were carried out at various deformation rates and temperatures. Heat treatments of solid solution (T4) and aging (T6) affected flow stress behaviors. Aging heat treatment samples (T6) had higher yield stresses and lower strain hardening rates than solution heat-treated samples (T4). Both hardening by deformation and softening by dynamic recrystallization (DRX) at elevated temperatures were observed. Most of precipitates formed during aging contained Zn and Zr elements. Linear strain hardening behavior was examined using a visco-plastic self consistent (VPSC) model.
引用
收藏
页码：361 / 364
页数：4
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