期刊
JOM
卷 74, 期 7, 页码 2622-2634出版社
SPRINGER
DOI: 10.1007/s11837-022-05320-1
关键词
-
类别
资金
- Spanish Ministry of Economy and Competitiveness [MAT2016-78850-R]
The temperature evolution of the Hall-Petch parameters for basal slip and twinning systems in AZ31 alloy was studied using synchrotron radiation diffraction. It was found that although macroscopic plasticity is controlled by tensile twinning, the stress for the activation of basal slip can also be calculated. At low temperatures, the grain size dependence of twinning is higher than that of basal slip, but at 473 K, basal slip becomes the dominant factor.
The temperature evolution of the Hall-Petch parameters for basal slip and twinning systems has been evaluated for the AZ31 alloy, using synchrotron radiation diffraction during compression tests from room temperature to 473 K. The AZ31 alloy was processed following two processing routes, casting and powder metallurgy, to obtain two different grain sizes with a similar strong fiber texture. Although macroscopic plasticity is controlled by tensile twinning, the stress for the activation of basal slip can also be calculated. At low temperatures, the grain size dependence of twinning is much higher than that for basal slip. However, basal slip prevails at 473 K, especially for the alloy processed through the powder metallurgy route, because of the low tendency for twinning deformation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据