Strong and ductile Mg alloys developed by dislocation engineering

作     者：M.Wang B.B.He M.X.Huang 

作者机构：Department of Mechanical Engineering The University of Hong Kong Shenzhen Institute of Research and Innovation The University of Hong Kong 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2019年第35卷第3期

页      面：394-395页

核心收录：

学科分类：0806[工学-冶金工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Dislocation engineering Mg alloys Warm rolling Strength and ductility 

摘      要：Dislocation engineering concept has been successfully employed to tackle the strength-ductility trade-off in steels, resulting in the development of high-strength high-ductility deformed and partitioned(D&P)steel. The present perspective proposes to employ such dislocation engineering concept to develop strong and ductile magnesium(Mg) alloys. High density of dislocations could be generated at appropriate temperature and retained in the Mg alloy after quenching to room temperature. Those dislocations inherited from the warm deformation could provide dislocation sources when the Mg alloy is deformed at room temperature, resulting in good ductility. The high dislocation density generated at warm deformation provides dislocation forest hardening, leading to improved yield strength of Mg alloy.