Reducing yield asymmetry in a wrought Mg–9Al alloy by randomized texture achieved via multi-directional forging
发布时间：2021-10-21
点击次数：
DOI码：10.1016/j.msea.2020.140003
发表刊物：Materials Science and Engineering A
关键字：Yield asymmetry; Texture; Twinning; Precipitate; Multi-directional forging; Magnesium alloys
摘要：This study shows that tension-compression yield asymmetry in a wrought Mg–9Al alloy can be reduced and even eliminated by multi-directional forging. After multi-directional forging and solution treatment, the texture was found to be randomized and maintained its features during grain growth. With this texture, the asymmetry ratio was tested to be 1.1 and 1.0 when the grain size was 7 and 30 μm, respectively. After peak aging, the ratio shifted to 1.2 and 1.1, respectively. The low asymmetry ratios were attributed to the low percentage of grains oriented for {101‾2} twinning and the balanced twining activity between tension and compression. A brief summary of studies on yield asymmetry was also conducted to present the various approaches and their effectiveness on this subject.
合写作者：J. You, D.D. Zhang, SN.. Jiang, Z.Y. Chen, C.M. Liu*
第一作者：J.S, Wei
文献类型：J
卷号：796
页面范围：140003
ISSN号：0921-5093
是否译文：否
发表时间：2020-08-05