铂基合金与GH3128合金电子束焊接接头组织与性能研究  

Microstructure and Properties of Electron Beam Welded Joints of Platinum Based Alloy and GH3128 Alloy

作　　者：蔡宏中[1,2] 易健宏[2] 吴霏[1] 周利民[1] 魏燕[1] 陈力[1] 张诩翔 崔浩[1] 张贵学 胡昌义[1,2] CAI Hongzhong;YI Jianhong;WU Fei;ZHOU Limin;WEI Yan;CHEN Li;ZHANG Xuxiang;CUI Hao;ZHANG Guixue;HU Changyi(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Insitute of Precious Metals,Kunming 650106,China;Faculty of Materials and Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明贵金属研究所,稀贵金属综合利用新技术国家重点实验室,昆明650106 [2]昆明理工大学材料科学与工程学院,昆明650093

出　　处：《贵金属》2018年第A01期32-35,共4页Precious Metals

基　　金：云南省技术创新人才项目(2016HB025);云南省应用基础研究重点项目(2016FA053);云南省重大科技专项(新材料2018ZE001)。

摘　　要：采用电子束焊接技术对铂基合金与GH3128进行焊接。利用工业CT、扫描电子显微镜、显微硬度仪和材料万能试验机,研究了铂基合金与GH3128焊接接头显微组织、力学性能及断口形貌。结果表明:铂基合金与GH3128具有良好的焊接性能,焊接接头的质量良好,无缺陷,成分均一,焊缝区显微硬度在360～380之间,焊缝强度为499 MPa,断裂方式为韧性断裂,断裂位置位于铂基合金一侧。The platinum base alloy and GH3128 were welded by electron beam welding technology.The microstructure,mechanical properties and fracture morphology of the platinum based alloy and GH3128 welded joints were studied by industrial CT,scanning electron microscope,microhardness tester and material universal testing machine.The results showed that the platinum based alloy and GH3128 have good welding performance.The welding joint has good quality,no defect,uniform composition,the micro hardness(HV)of weld zone was between 360 to 380,weld strength was 499 MPa,fracture mode as ductile fracture and fracture position on one side of platinum base alloy.

关 键 词：铂合金 GH3128 电子束焊接 焊缝组织 力学性能 

分 类 号：TG146.43[一般工业技术—材料科学与工程]