Microstructure, mechanical and corrosion properties of electron-beam-melted and plasma-transferred arc-welded WC_P/NiBSi metal matrix composites

作     者：Chang Liu Hui Peng Yue Zhao Yuan Yuan Hong-Bo Guo Hui-Bin Xu 

作者机构：School of Materials Science and EngineeringBeihang UniversityBeijing 100191China Beijing Key Laboratory for Advanced Functional Material and Thin Film TechnologyBeihang UniversityBeijng 100191China Key Laboratory of Aerospace Materials&Performance(Ministry of Education)Beihang UniversityBeijng 100191China School of Mechanical Materials and Mechatronic EngineeringFaculty of Engineering and Information SciencesUniversity of WollongongWollongongNSW 2522Australia Zhuzhou Seed Cemented Carbide Technology Co.LtdZhuzhou 412000China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2019年第38卷第9期

页      面：814-823页

核心收录：

学科分类：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] 

基　　金：financially supported by the National Basic Research Program of China (No. 2010CB631200) the National Nature Science Foundations of China (Nos. 50771009, 50731001 and 51071013) 

主　　题：Electron beam melting Metal matrix composites Microstructure Carbides Additive manufacturing 

摘      要：As one of the new additive manufacturing processes,electron beam melting(EBM)has seen its promising potential in the fabrication of metal matrix composites(MMCs)components with complex *** this work,WC_P/NiBSi MMCs were fabricated by EBM and plasma-transferred arc welding(PTAW)for a comparative *** microstructures of both samples were examined using a scanning electron microscope(SEM)equipped with an electron backscattered diffraction(EBSD)*** macrohardness was tested using a Rockwell hardness method(Type C),while the microhardness was measured using different loadings(0.5-1.0 N)based on different *** anti-abrasion performance was tested as per the ASTM G105 *** corrosion behavior of the MMCs was also assessed by potentiodynamic *** results indicate that the EBM bulk and the PTAW cladding MMCs exhibit different microstructures due to the different local solidification *** is believed to lead to the varied mechanical properties and corrosion resistance of the MMCs,and the possible mechanisms were also discussed.