航空材料学报2009，Vol.29Issue(6)：48-52,5.DOI:10.3969/j.issn.1005-5053.2009.6.010
C_f/SiC复合材料与Ti合金的AgCuTi-W复合钎焊
Joining of C_f/SiC Composite to Ti Alloy using AgCuTi-W Composite Filler Materials
摘要
Abstract
C_f/SiC was successfully joined to Ti alloy with AgCuTi-W mixed powder by some suitable brazing parameters. Microstructures of the brazed joint were investigated by SEM, EDS and XRD. The mechanical properties of the brazed joints were measured by mechanical testing machine. The results showed that Ti element in the interlayer can reaction with the brazed composite, a mixture of Ti3SiC2,Ti3Si and TiC composites finally formed the reaction layer between composite and interlayer. Ti alloy constantly dissolves and Cu diffuses into the Ti alloy, forming the diffusion -reaction layers between interlayer and Ti alloy. The performed joints have dense bonding layers reinforced by W. These composite brazing layers relaxed the thermal stress of the joint effectively. These characteristics were beneficial to the joint, of which the shear strength were remarkably highly than the optimal shear strengths of the joint brazed with pure AgCuTi.关键词
C_f/SiC/Ti合金/钎焊/AgCuTi-WKey words
C_f/SiC composite/ Ti alloy/ brazing/ AgCuTi-W filler materials分类
矿业与冶金引用本文复制引用
熊进辉,黄继华,薛行雁,张华,赵兴科,林国标..C_f/SiC复合材料与Ti合金的AgCuTi-W复合钎焊[J].航空材料学报,2009,29(6):48-52,5.基金项目
国家高技术研究发展计划(2006AA03A221) （2006AA03A221）
