Mg-Sc-Nd-xZn series alloys with medium strength and high plasticity  

作　　者：Fulong Xue Zhuangzhuang Feng Yubo Gao Di Mei Baolin Chang Jianfeng Wang Shijie Zhu Shaokang Guan 

机构地区：[1]School of Materials Science and Engineering,Zhengzhou University,Zhengzhou,450001,China [2]Henan Province Key Laboratory of Advanced Light Alloys,Zhengzhou,450002,China [3]Key Laboratory of Materials Processing and Mold(Ministry of Education),Zhengzhou,450002,China

出　　处：《Journal of Rare Earths》2024年第12期2362-2373,I0006,共13页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(52301107);the National Key Research and Development Program of China(2021YFC2400703)。

摘　　要：Different application scenarios put forward diverse requirements of mechanical properties for magnesium alloys.In this study,the extruded Mg-Sc-Nd-Zn alloy series with high plasticity and medium strength was developed.The uniformly distributed Mg_(3)Nd(β_(1))phase,high-density twins,and the activated non-basal dislocation slips contribute to the high plasticity of Mg-Sc-Nd alloy.With the addition of Zn element,the appearance of coarse ScZn phases,which prevents the activation of{1012}tensile twins,leads to an increase in strength but a simultaneous decrease in the plasticity of the extruded alloys.Adjusting the Zn content in the Mg-Sc-Nd-xZn allows a series of alloys with various strengths and plasticity matching.The results obtained in this work are of great importance for developing a regulatable magnesium alloy series that aims at different application scenarios.

关 键 词：Magnesium alloy Tension twin Non-basal slip High plasticity Rare earths 

分 类 号：TG146.22[一般工业技术—材料科学与工程]