Study on anisotropy of microstructure and mechanical properties of AZ31 magnesium alloy fabricated by wire arc additive manufacturing

作     者：Dong Ma Chun-jie Xu Jun Tian Shang Sui Can Guo Xiang-quan Wu Zhong-ming Zhang Dong Ma;Chun-jie Xu;Jun Tian;Shang Sui;Can Guo;Xiang-quan Wu;Zhong-ming Zhang

作者机构：School of Materials Science and EngineeringXi'an University of TechnologyXi'an 710048China Xi'an Shechtman Nobel Prize New Materials InstituteXi'an 710048China Xi'an Key Laboratory of Advanced Magnesium Alloy Additive Manufacturing and Precision FormingXi'an 710048China MGM Nobel Prize New Materials Co.Ltd.Tongchuan 727100ShaanxiChina 

出 版 物：《China Foundry》 (中国铸造（英文版）)

年 卷 期：2023年第20卷第4期

页      面：280-288页

核心收录：

学科分类：0806[工学-冶金工程] 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] 0702[理学-物理学] 

基　　金：support from the International Science and Technology Cooperation Program of Shaanxi Province(No.2023-GHZD-50) Projects of Major Innovation Platforms for Scientific and Technological and Local Transformation of Scientific and Technological Achievements of Xi'an(No.20GXSF0003) Projects of Major Scientific and Technological Achievements Local Transformation of Xi'an(No.2022JH-ZDZH-0039) the Higher Education Institution Discipline Innovation and Intelligence Base of Shaanxi Province(No.S2021-ZCGXYZ-0011) 

主　　题：magnesium alloy wire arc additive manufacturing anisotropy microstructure mechanical properties 

摘      要：Based on wire arc additive manufacturing(WAAM)technology,AZ31 magnesium alloy in bulk was successfully fabricated,and its microstructure as well as mechanical properties in different planes were observed and *** AZ31 magnesium alloy has a similar microstructure in the building direction(Z)and travel direction(X),both of which are equiaxed *** are heat-affected zones(HAZs)with coarse grains below the fusion *** second phase is primarily composed of the Mg17Al12 phase,which is evenly distributed in different *** addition,the residual stress varies in different *** is no significant difference in the hardness of the AZ31 alloy along the Z and X directions,with the average hardness being 68.4 HV and 67.9 HV,*** though the specimens’ultimate tensile strength along the travel direction is higher in comparison to that along the building direction,their differences in elongation and yield strength are smaller,indicating that the anisotropy of the mechanical properties of the material is small.