Predicting and controlling interfacial microstructure of magnesium/aluminum bimetallic structures for improved interfacial bonding

作     者：Ziang Zhu Renhai Shi Andrew D.Klarner Alan A.Luo Yiqing Chen Ziang Zhu;Renhai Shi;Andrew D.Klarner;Alan A.Luo;Yiqing Chen

作者机构：Materials Science and EngineeringThe Ohio State UniversityColumbusOHUSA Materials Science and EngineeringHefei University of TechnologyHefeiAnhuiChina Integrated Systems EngineeringThe Ohio State UniversityColumbusOHUSA now at M Cubed TechnologiesNewarkDEUSA 

出 版 物：《Journal of Magnesium and Alloys》 (镁合金学报（英文）)

年 卷 期：2020年第8卷第3期

页      面：578-586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] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the National Natural Science Foundation of China[grant number 51571080] 

主　　题：Bimetallic structure Interfacial bonding CALPHAD and diffusion modeling Aluminum alloys Magnesium alloys. 

摘      要：In this study,an overcasting process followed by a low-temperature(200°C)annealing schedule has been developed to bond magnesium to aluminum *** software was used to optimize the process parameters during the overcasting process which lead to Mg/Al bimetallic structures to be successfully produced without formation of Mg-Al intermetallic *** microstructure evolution during annealing,including the formation and growth of Al-Mg interdiffusion layer and intermetallic phases(Al12Mg17 and Al3Mg2),was experimentally observed for the first time with direct evidence,and predicted using Calculation of Phase Diagrams(CALPHAD)*** interfacial strength was achieved when the interdiffusion layer formed at the Mg/Al interface reached a maximum thickness the without formation of brittle intermetallic *** precise diffusion modeling of the Mg/Al interface provides an efficient way to optimize and control the interfacial microstructure of Mg/Al bimetallic structures for improved interfacial bonding.