胡胜鹏,陈祖斌,雷玉珍,宋晓国,康佳睿,曹健,唐冬雁.TiZrNiCu/Ti60润湿性及与TiBw-TC4钎焊研究[J].稀有金属材料与工程,2019,47(3):701~710.[S. P. Hu,Z. B. Chen,Y. Z. Lei,X. G. Song,J. R. Kang,J. Cao,D. Y. Tang.Wettability of TiZrNiCu-B/Ti60 system and its brazing to TiBw-TC4 composite[J].Rare Metal Materials and Engineering,2019,47(3):701~710.]
TiZrNiCu/Ti60润湿性及与TiBw-TC4钎焊研究
投稿时间:2017-10-09  修订日期:2017-10-27
中文关键词:  润湿  TiZrNiCu-B钎料  Ti60合金  TiBw-TC4复合材料  接头性能
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      本文采用座滴法在真空下系统研究了硼含量对TiZrNiCu/Ti60润湿性的影响,且在940°C保温10分钟条件下实现了与的钎焊。通过SEM、XRD以及剪切实验研究了界面显微组织及剪切力学性能。添加B元素可以与Ti原位合成TiBw,从而细化界面的显微组织。当B含量为0.3 wt %时,TiBw-TC4 /TiZrNiCu-B/Ti60接头的最大剪切强度为177 MPa,比无B含量的接头强度高65%。然而,过量的B含量使TiZrNiCu-B在Ti60合金基体上产生大量的TiBw,导致润湿性恶化,在钎焊接头形成微孔和未焊合区域,从而使剪切强度下降。
Wettability of TiZrNiCu-B/Ti60 system and its brazing to TiBw-TC4 composite
英文关键词:wetting  TiZrNiCu-B filler  Ti60 alloy  TiBw-TC4 composite  joint strength
英文摘要:
      In this work, the connection between the boron content and the wettability of TiZrNiCu/Ti60 system was studied by sessile drop method of elevating and maintaining isothermal process under vacuum, and TiBw-TC4 composite was successfully brazed to Ti60 alloy using TiZrNiCu-B filler alloy with brazing temperature of 940 °C for 10 min. The contact angle of TiZrNiCu/Ti60 alloy substrate and the corresponding interfacial microstructure, the interfacial microstructures and shear fractures of brazed joints were studied using SEM, EDS and XRD, and the influence of B content on interfacial microstructure and joining properties was also investigated in detail. Added B element can react with Ti to in-situ synthesizing TiB whiskers (TiBw), which resulted in a relative refinement of microstructure. And the maximum shear strength of TiBw-TC4/TiZrNiCu-B/Ti60 joint was 177 MPa when the content of B is 0.3 wt.%, which was 65% higher than the joints brazed without B content. However, the excessive B content worsened the wetting behavior of TiZrNiCu-B on Ti60 alloy substrate, resulted in the microvoids and disconnected area in the brazed joint, and the shear strength decreased inevitably.
作者单位E-mail
胡胜鹏 哈尔滨工业大学先进焊接与连接国家重点实验室 husp@hitwh.edu.cn 
陈祖斌 哈尔滨工业大学先进焊接与连接国家重点实验室 czbcsu@163.com 
雷玉珍 哈尔滨工业大学(威海)山东省特种焊接技术重点实验室 lei.yuzhen@163.com 
宋晓国 哈尔滨工业大学先进焊接与连接国家重点实验室 xgsong@hitwh.edu.cn 
康佳睿 哈尔滨工业大学(威海)山东省特种焊接技术重点实验室  
曹健 哈尔滨工业大学先进焊接与连接国家重点实验室 cao_jian@hit.edu.cn 
唐冬雁 哈尔滨工业大学 dytang@hit.edu.cn 
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