Twinning behaviors of Mg-Sn alloy with basal or prismatic Mg_2Sn

作     者：Rui-hao FU Yang-jie WAN Xun-fei XIONG Dong-di YIN Man-ping LIU Bin JIANG Zi-rong ZHOU Yu-yang GAO Ying ZENG 付瑞豪;万杨杰;熊训飞;尹冬弟;刘满平;蒋斌;周梓荣;高瑜阳;曾迎

作者机构：National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqing 400044China Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China School of Materials Science and EngineeringJiangsu UniversityZhenjiang 212013China Institute of Science and Technology InnovationDongguan University of TechnologyGuangdong 523007China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2024年第34卷第9期

页      面：2800-2813页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China(Nos.52004227,U22A20187,52201106) the China Postdoctoral Science Foundation(No.2020M683240) the Key Area Research and Development Program of Guangdong Province China(No.2020B090924002) 

主　　题：Mg−Sn alloy orientation regulation twinning behavior Mg2Sn lath Orowan strengthening 

摘      要：The Mg-Sn alloys,with basal or prismatic Mg2Sn laths,were employed to reveal the effect of precipitate orientation on twinning behavior *** Mg-5wt.%Sn alloys with basal or prismatic Mg2Sn were compressed to study the twinning ***,an Orowan strengthening model was developed to quantitatively investigate the critical resolved shear stress(CRSS)increment of precipitates on *** results revealed that the prismatic precipitates hindered the transfer and growth of tensile twins more effectively compared with the basal *** decreased proportion of tensile twins containing prismatic Mg2Sn might be attributed to a larger CRSS increment for tensile twins compared with that for basal *** obvious decreased twinning transfer in the alloy with prismatic Mg2Sn could be due to its higher geometrically necessary dislocation and enhanced CRSS of tensile ***,the prismatic precipitates have a better hindering effect on tensile twins during compression.