Fine structure characterization of an explosively-welded GH3535/316H bimetallic plate interface

作     者：Jia Xiao Ming Li Jian-ping Liang Li Jiang De-jun Wang Xiang-xi Ye Ze-zhong Chen Na-xiu Wang Zhi-jun Li Jia Xiao;Ming Li;Jian-ping Liang;Li Jiang;De-jun Wang;Xiang-xi Ye;Ze-zhong Chen;Na-xiu Wang;Zhi-jun Li

作者机构：School of Materials Science and EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China Dalian National Laboratory for Clean EnergyDalian 116023China Ministry of Ecology and EnvironmentBeijing 100135China Institute of Zhejiang University-QuzhouQuzhou 324004China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2021年第28卷第11期

页      面：1811-1820页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.U2032205,51971238,and 52005492) the Shanghai Outstanding Academic Leaders Plan(21XD1404300) the Natural Science Foundation of Shanghai(Nos.18ZR1448000,19ZR 1468200,20ZR1468600,and 21XD1404300) the Shanghai Sailing Program(Grant No.19YF1458300) the Youth Innovation Promotion Association,Chinese Academy of Science(No.2019264) 

主　　题：GH3535/316H bimetallic plate ultrahigh temperature molten salt explosive welding interface structure dislocation substructure 

摘      要：An explosion-welded technology was induced to manufacture the GH3535/316H bimetallic plates to provide a more cost-effective structural material for ultrahigh temperature,molten salt thermal storage *** microstructure of the bonding interfaces were extensively investigated by scanning electron microscopy,energy dispersive spectrometry,and an electron probe *** bonding interface possessed a periodic,wavy morphology and was adorned by peninsula-or island-like transition *** higher magnification,a matrix recrystallization region,fine grain region,columnar grain region,equiaxed grain region,and shrinkage porosity were observed in the transition zones and surrounding *** backscattered diffraction demonstrated that the strain in the recrystallization region of the GH3535 matrix and transition zone was less than the *** concentration occurred at the interface and the solidification defects in the transition *** dislocation substructure in 316H near the interface was characterized by electron channeling contrast imaging.A dislocation network was formed in the grains of *** microhardness decreased as the distance from the welding interface increased and the lowest hardness was inside the transition zone.