期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2012.09.010
关键词
EBSD; Magnesium alloys; Sheet forming; Plasticity; Twinning
类别
资金
- National Natural Science Foundation of China [51105350]
- National Basic Research Program of China (973 Program) [2013CB632202]
Pure magnesium, Mg-Y (1, 3, 5) and Mg-1Zn alloy (nominal composition, in wt%) were selected to examine the influence of alloying on the microstructure, texture and mechanical properties of Mg plates after hot-rolling and subsequent annealing. It was found that the maximum intensity of the rolled texture was markedly decreased with increasing Y additions but slightly increased by the Zn addition, in comparison with that of pure Mg. The texture weakening efficiency of Y addition declined with increasing Y concentration. The weakening of texture in Mg-Y alloys was attributed to the solute-driven effect, manifest as solute segregation at grain boundaries, which was evidenced by the TEM examination. Tensile testing revealed that the Mg-1Y alloy exhibited the highest elongation-to-failure of 30% at room temperature, and EBSD analysis suggested that the observed high room-temperature ductility was attributed to the weakened texture which favored the operation of the basal slip and tensile twinning. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
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