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 。
By means of the 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.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2002年第4期6-8,共3页
Transactions of The China Welding Institution
基金
国家自然科学基金资助项目 (50 1 750 2 1 )
