Welding of Ti–6Al–4V and TiB2–Ni cermet using pulsed current heating

Abstract

Ti–6Al–4V alloy was joined with TiB₂–Ni cermet by using pulsed current heating and hot pressing. The properties were found to be better with the pulsed current process, because the current enhanced the growth of Ni–Ti phase at the junction between the two materials. Furthermore, the heat affected zone is localised in the pulsed current process relative to that in the hot pressed material.