Study on diffusion welding using allyed layer on bonding surface (Report 3) - A study on formation of alloyed layer of low melting temperature on bonding surface of IN738LC with sputtering.

Diffusion welding method using alloyed layer with sputtering after Ar ion bombarding on bonding surface of IN738LC has been studied.In this report, effect of Ar ion bombardment on oxide film of bonding surface, effect of sputtering condition on formation of alloyed layer and measurement of melting temperature were investigated.The results indicated that: oxide film on bonding surface can be removed by Ar ion bombardment, formation rate of alloyed layer is very fast in 3×10-3 Torr Ar and melting temperature of alloyed layer was 1080-1100°C.