典型文献
Dominant Deformation Mechanisms in Mg-Zn-Ca Alloy
文献摘要：
The coaddition of Zn and Ca has great potential to improve the ductility of Mg alloys.Herein,the mechanical properties of an extruded Mg-Zn-Ca solid-solution alloy were studied by quasi-in situ electron backscatter diffraction(EBSD)-assisted slip trace analysis.The dominant deformation mechanisms of the Mg-Zn-Ca alloy were studied,and the origins of enhanced ductility were systematically revealed.The results indicate that most grains deformed by basal slip.In addition,multiple non-basal slip traces were detected(particularly prismatic,pyramidal Ⅰ,and pyramidal Ⅰslip traces),and their activation frequency was promoted with increasing tensile strain.The enhanced participation of non-basal slip systems is believed to play a critical role in achieving homogeneous plastic deformation,thus effectively promoting the ductility of the Mg-Zn-Ca alloy.Furthermore,first-principle calculations revealed that the coaddition of Zn and Ca significantly reduces the unstable stacking fault energy for non-basal slip,which contributes to the activation of non-basal slip systems during plastic deformation.
文献关键词：
中图分类号：
作者姓名：
Tao Ying;Mingdi Yu;Yiwen Chen;Huan Zhang;Jingya Wang;Xiaoqin Zeng
作者机构：
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]Tao Ying;Mingdi Yu;Yiwen Chen;Huan Zhang;Jingya Wang;Xiaoqin Zeng-.Dominant Deformation Mechanisms in Mg-Zn-Ca Alloy)[J].金属学报（英文版）,2022(12):1973-1982
A类：
coaddition
B类：
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AB值：
0.558896
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