Acceleratin of Diffusion Bonding of Dissimilar Metals by Ion Bombardment

Abstract

In diffusion bonding of Ti alloy to stainless steel, brittle intermetallic compounds are formed at the bond interface, therefore strength of the joints obtained by a conventional technique were extremely low.
In this research, possibility to obtain high strength joints preventing the formation of intermetallic rmmnnunds by diffusion bonding in a short time were examined experimentally.
As the results of the experiments, it was clarified that high strength joints of Ti alloy to stainless steel were obtained by diffusion bonding in a short time (for example, 60 s at 1023 K) of the cleaned specimens by ion bombardment with fine surface roughness.