首页 | 本学科首页   官方微博 | 高级检索  
     

Cf/SiC复合材料与钛合金(Ti-Zr-Cu-Ni)+W复合钎焊分析
引用本文:崔冰,黄继华,蔡创,陈树海. Cf/SiC复合材料与钛合金(Ti-Zr-Cu-Ni)+W复合钎焊分析[J]. 焊接学报, 2013, 34(7): 55-58
作者姓名:崔冰  黄继华  蔡创  陈树海
作者单位:北京科技大学材料科学与工程学院,北京,100083
基金项目:国家自然科学基金资助项目
摘    要:在适当的工艺参数下,用(Ti-Zr-Cu-Ni)+W复合钎料真空钎焊Cf/SiC复合材料与钛合金,采用SEM,EDS和XRD分析接头组织结构,利用剪切试验检测接头的力学性能.结果表明,钎焊时复合钎料中的钛、锆与Cf/SiC复合材料反应,在Cf/SiC复合材料与连接层界面生成Ti3SiC2,Ti5Si3和少量TiC(ZrC)化合物的混合反应层,在连接层与钛合金界面形成Ti-Cu化合物扩散层.增强相钨粉能有效缓解接头的残余热应力,提高接头力学性能,在连接温度930℃,保温时间20 min的工艺条件下,增强相钨粉含量为15%(体积分数)时,接头抗剪强度最高为166 MPa.

关 键 词:碳纤维增强碳化硅复合材料  钛合金  钎焊
收稿时间:2012-12-09

Brazing of Cf/SiC composite to Ti alloy with (Ti-Zr-Cu-Ni)+W composite filler material
CUI Bing,HUANG Jihu,CAI Chuang and CHEN Shuhai. Brazing of Cf/SiC composite to Ti alloy with (Ti-Zr-Cu-Ni)+W composite filler material[J]. Transactions of The China Welding Institution, 2013, 34(7): 55-58
Authors:CUI Bing  HUANG Jihu  CAI Chuang  CHEN Shuhai
Affiliation:(School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China).
Abstract:Cf/SiC composite was successfully joined to Ti alloy with (Ti-Zr-Cu-Ni)+W composite filler material with the proper parameters.The interfacial microstructures of the brazed joints were investigated by SEM,EDS and XRD.The mechanical properties of the brazed joints were tested by mechanical properties test.The results showed that Ti and Zr elements in the filler material can make a reaction with the Cf/SiC composite during the brazing process.A mixture of Ti3SiC2,Ti5Si3 and a small amount of TiC(ZrC) compounds finally form adjacent to the Cf/SiC composite.Ti alloy constantly dissolves and Cu,Ni elements diffuse into the Ti alloy,and then form the diffusion reaction layers between interlayer and Ti alloy.The addition of reinforced phase W particles is markedly beneficial on relaxing the thermal stress and improving the strength of the joints.The maximum shear strength of the brazed joints is 166 MPa.
Keywords:Cf/SiC composite  Ti alloy  brazing
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《焊接学报》浏览原始摘要信息
点击此处可从《焊接学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号