当前位置: X-MOL 学术Mater. Sci. Eng. A › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effects of the β1′ precipitates on mechanical and damping properties of ZK60 magnesium alloy
Materials Science and Engineering: A ( IF 6.1 ) Pub Date : 2020-12-30 , DOI: 10.1016/j.msea.2020.140730
Xiongpeng Zhou , Hongge Yan , Jihua Chen , Weijun Xia , Bin Su , Xinyu Li , Wensen Huang , Min Song

A new approach to improve the damping capacity and mechanical properties of ZK60 magnesium alloy at the same time is discovered by introducing the β1′ (MgZn2) precipitates. The β1′ precipitates are formed in the alloy experienced solution treatment and subsequent aging at 140 °C for 18 h in this study. The synchronous improvement in mechanical and damping properties of the alloy is mainly due to the coherent orientation relationships between the β1′ phase and the α-Mg matrix, and the shearing or bypassing of dislocations on the β1′ precipitates depending on their sizes and spacing. The modified Granato-Lücke (G-L) model is presented in this work to analyze the favorable damping capacity of the as-aged ZK60 alloy and the interaction between the β1′ precipitates and the mobile dislocations is a new source of energy-dissipation.



中文翻译:

所述β的影响1 '上的机械沉淀物和ZK60镁合金的阻尼特性

改善的同时阻尼能力和ZK60镁合金的机械性能的新方法是通过将β发现1 '(的MgZn 2)沉淀物。所述β 1在合金'形成的沉淀经历固溶处理和随后的老化在140℃下对在本研究中18小时。在该合金的机械性能和阻尼性能的同步的改善主要是由于β之间的相干取向关系1 '相和α-Mg基体,和剪切或位错的对β绕过1'根据其大小和间距而沉淀。修改后的格拉纳托-乐其(GL)模型在这项工作中提出来分析作为时效ZK60合金的有利阻尼容量和β之间的相互作用1 '析出物和移动位错是能量耗散的新来源。

更新日期:2021-01-10
down
wechat
bug