连接温度对TiC陶瓷/铸铁钎缝处剪应力的影响

基金项目: 国家自然科学基金资助项目(50175021)

Effects of Joining Temperature on Shear Stress in Brazing Fillet of TiC Ceramic/Iron

National Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China

摘要: 采用有限元数值模拟方法研究了冷却过程中用Ni基钎料对TiC陶瓷/铸铁进行钎焊连接钎缝处剪应力的分布情况及连接温度对钎缝处最大剪应力的影响。结果表明,在冷却过程中,剪应力均主要集中在TiC陶瓷/铸铁的钎缝端点上;连接温度越高,钎缝处的最大剪应力越大,连接接头的强度越低。
- 有限元 /
- 数值模拟 /
- 剪应力
Abstract: By means of finite element numerical simulation,when using the Ni based brazing filler metal,the shear stress distribution in the brazing fillet of TiC ceramic/iron and the effects of joining temperature on the maximum value of the shear stress were researched.The result shows:the shear stress always centres on the brazing fillet tip of TiC ceramic/iron;with the joining temperature increasing,the maximum value of the shear stress in the brazing fillet increases and the strength of the joint decreases.
- finite element /
- numerical simulation /
- shear stress