Formation Mechanism of Diffusion Welded Joint
In this study, solid state diffusion welding behavior of titanium alloys was investigated. Formation mechanism of diffusion welding process in six stages is proposed, which is based on cavitation process. The specimens were diffusion welded at elevated temperature under a hydrostatic pressure in an inert environment and the results confirmed the formation mechanism at each corresponding stage. This includes clear evidence of void closure and grain boundary migration at the final stage.
H. S. Lee et al., "Formation Mechanism of Diffusion Welded Joint", Advanced Materials Research, Vols. 228-229, pp. 666-671, 2011