Effect of grain refinement induced by wire and arc additive manufacture (WAAM) on the corrosion behaviors of AZ31 magnesium alloy in NaCl solution  

作　　者：Jianwei LI Youmin QIU Junjie YANG Yinying SHENG Yanliang YI Xun ZENG Lianxi CHEN Fengliang YIN Jiangzhou SU Tiejun ZHANG Xin TONG Bin GUO 

机构地区：[1]School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,PR China [2]Beijing Hangxing Machinery Manufacture Limited Corporation,Beijing 100013,PR China [3]Institute of Advanced Wear&Corrosion Resistant and Functional Materials,Jinan University,Guangzhou 510632,PR China [4]The Third Academy of CASIC,Beijing 100074,PR China [5]MOE Key Lab of Disaster Forecast and Control in Engineering,Jinan University,Guangzhou,510632,P.R.China [6]Institute of Materials and Process Design,Helmholtz-Zentrum Hereon,Max-Planck-Str.1,21502 Geesthacht,Germany [7]School of Materials Science and Hydrogen Energy,Foshan University,Foshan 528000,PR China

出　　处：《Journal of Magnesium and Alloys》2023年第1期217-229,共13页镁合金学报（英文）

基　　金：the financial support by National Key Research and Development Project(Grand No.2020YFC1107202);Guangdong Basic and Applied Basic Research Foundation(Grand No.2020A1515110754);MOE Key Lab of Disaster Forest and Control in Engineering,Jinan University(Grand No.20200904008);Educational Commission of Guangdong Province(Grand No.2020KTSCX012);the Fundamental Research Funds for Central Universities(Grand No.21620342);the support from National Natural Science Foundation of China,NSFC(Grand No.51775556)。

摘　　要：Additive manufacturing(AM)of Mg alloys has become a promising strategy for producing complex structures,but the corrosion performance of AM Mg components remains unexploited.In this study,wire and arc additive manufacturing(WAAM)was employed to produce single AZ31 layer.The results revealed that the WAAM AZ31 was characterized by significant grain refinement with non-textured crystallographic orientation,similar phase composition and stabilized corrosion performance comparing to the cast AZ31.These varied corrosion behaviors were principally ascribed to the size of grain,where cast AZ31 and WAAM AZ31 were featured by micro galvanic corrosion and intergranular corrosion,respectively.

关 键 词：AZ31 magnesium alloy Wire and arc additive manufacturing(WAAM) Grain refinement Microstructure Intergranular corrosion 

分 类 号：TG146.22[一般工业技术—材料科学与工程]