标题:Microstructure and Shear Strength in Brazing Joint of Mo-Cu Composite with 304 Stainless Steel by Ni-Cr-P Filler Metal
作者:Wang, Juan;Wang, Jiteng;Li, Yajiang;Zheng, Deshuang
作者机构:[Wang, J] Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University, Shandong, Chin 更多
通讯作者:Wang, Juan
通讯作者地址:[Wang, J]Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Shandong, Peoples R China.
来源:HIGH TEMPERATURE MATERIALS AND PROCESSES
出版年:2015
卷:34
期:4
页码:347-351
DOI:10.1515/htmp-2014-0048
关键词:mo-Cu composite;Ni-Cr-P filler metal;vacuum brazing;microstructure
摘要:The brazing of Mo-Cu composite and 304 stainless steel was carried out in vacuum with Ni-Cr-P filler metal at 980 degrees C for 20 min. Microstructure in Mo-Cu/304 stainless steel joint was investigated by field-emission scanning electron microscope (FE-SEM) with energy dispersive spectrometer (EDS) and shear strength was measured by shearing test. The results indicate that shear strength of the Mo-Cu/304 stainless steel joint is about 155 MPa. There forms eutectic structure of gamma-Ni solid solution with Ni3P in the braze seam. Ni-Cu(Mo) and Ni-Fe solid solution are at the interface beside Mo-Cu composite and 304 stainless steel, respectively. Shear fracture exhibits mixed ductile-brittle fracture feature with trans-granular fracture, ductile dimples and tearing edges. Fracture originates from the interface between brazing seam and Mo-Cu composite and it propagates to the braze seam due to the formation of brittle Ni5P2 and Cr3P precipitation.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84932115565&doi=10.1515%2fhtmp-2014-0048&partnerID=40&md5=7e43d06d7ec82c1d76e299fd419f9b12
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