Numerical Simulation on Residual Stress in Diffusion Bonding Joints by Difference of Expansion Stress
The residual stress in the diffusion bonding joints of Ti-6Al-4V and ZQSn10-10 sleeve structure was simulated by ANSYS.The results indicat that the residual stress which is harmful to the joint,appears in the narrow area adjacent to Ti-6Al-4V side where intermetallic compounds form;and the stress uniformly distributes along the welding axis.But the stress concentrates on the upper and down surfaces,because of brinkmanship.