فهرست نشریات علمی دسترسی آزاد ایران

 The jointment of titanium alloys to stainless steel poses significant challenges due to their substantially different physical, chemical, and thermal properties. The joint properties of 304 stainless steel and Ti6Al4V are highly important due to the extensive industerial application of 304 stainless steel and Ti6Al4V alloy. The formation of brittle intermetallic compounds such as Fe2Ti and FeTi in the weld zone is a primary cause of decline in joint strength and failure. This study investigates various welding methods, including solid-state and fusion weldings, and analyzes the impact of interlayer materials on improving the joint quality. Various welding methods have been used to join these two alloys among which, liquid-state weldings such as high energy beam welding, resistance welding, arc welding, and solid-state weldings like diffusion welding, friction stir welding can be mentioned. The results indicate the crucial role of welding process and parameter optimization for preventing the formation of intermetallic compounds and enhancing the joint strength. Diffusion bonding using niobium interlayer leads to the highest tensile strength (417.5 MPa) among the solid-state welding processes. Additionally, a combination of copper and vanadium interlayers in laser welding technique demonstrated significant strength of 350 MPa among the fusion welding techniques. In fusion welding processes, the use of copper as an interlayer not only reduced residual stresses but also prevented the formation of brittle phases, thereby, improving joint quality. This research highlights that the use of interlayers such as copper, nickel, silver, and niobium, combined with optimized welding processes, can effectively overcome the relevant challenges. These findings provide valuable guidance for designing welding processes and expanding industrial applications. The joint mechanical properties of the solid and liquid state weldings of stainless steels and Ti alloys were listed over the previous 3 decades.