Study of microstructure and mechanical properties of friction welded metastable beta titanium alloy titan 1023

Rotary friction welding of a high strength metastable beta titanium alloy Ti-10V-2Fe-3Al was attempted in the current study. Friction welding experiments were conducted on 14 mm diameter rods extracted from 60 mm diameter hot rolled bars. Based on a series of welding trials, the optimum welding parameters were identified. Welds produced using the optimum parameters were characterized in detail for their microstructures. Welds were also subjected to solution treatment (780°C/1hour/Water Quench) and aging (520°C/8hours/Air Cooling). Micro hardness survey across the welds and tensile property comparison were made in both as-welded and post-weld heat treated conditions. Based on these studies, structure-property relationships in Ti-10V-2Fe-3Al friction welds were established.