期刊文献+

Twin evolution in cast Mg-Gd-Y alloys and its dependence on aging heat treatment

下载PDF
导出
摘要 Effects of rare-earth(RE)and precipitates on twin evolution in cast Mg-10Gd-3Y-0.5Zr(wt.%)(GW103)alloys of solid solution(T4)and aged(T6)states are investigated performing quasi-static room temperature compression tests and microstructural characterization.It is found that both{10–12}and{11–21}extension twins(ET1 and ET2)can appear in the T4 and T6 states but with different emergence sequences.As the aging heat treatment leads to consumption of RE solutes which could inhibit atomic shuffling required for nucleation of ET1 but not ET2,ET2 occurs prior to ET1 in the T4 state,and ET1 emerges before ET2 in the T6 state.The extension twins here mainly coordinate the plastic deformation through the non-Schmid effect.Our results shed light on the influence of RE elements on twin evolution in magnesium alloys and have implications in developing high-performance Mg-RE alloys.
出处 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2023年第7期2285-2298,共14页 镁合金学报(英文)
基金 supported by the National Natural Science Foundation of China(grants U1830121,51301173,51531002,51601193,52171055) the National Science and Technology Major Project(2017-VI-0003-0073) the National Key Research and Development Program of China(2016YFB0301104) China Postdoctoral Science Foundation(grant 8206300226).
  • 相关文献

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部