Abstract:The welding property of TiB₂/ZL101 composite was investigated using electron beam (EB) welding experimental system with a function generator. The fine defect-free welding seam was obtained under proper processing parameters and scanning rate. The reinforcement particles TiB₂ distributed homogeneously in welding seam without any segregation. The tensile results show that fracture occurs at the base metal and elastic modulus increases compared with base metal. Wear resistance of welding seam is improved greatly compared with base metal. The results show that the TiB₂/ZL101 composite can be successfully welded by EB technology.

Key words: TiB₂/ZL101composite; electron beam welding; segregation; tension; wear resistance