Effect of alloying elements on properties and microstructures of Ti-V-Cr burn resistant alloys

Burn resistant Ti alloys have been developed over the last 10 years. The ai m of the present paper is to study the effects of alloying elements on prop erties and microstructures of Ti-V-Cr burn resistant alloys. The alloys Ti - 35V - 15Cr, Ti - 25V - 15Cr, and Ti - 25V - 15Cr - 3Al usually show simpl e beta phase structures, and recrystallisation finishes at 800 degrees C. T he Ti - 25V - 15Cr alloy has good workability, tensile properties, and ther mal stability compared with the Ti - 35V - 15Cr and Ti - 25V - 15Cr - 3Al a lloys. There are rr precipitates in the Ti - 25V - 15Cr alloy after exposur e at 500 degrees C for 100 h, which leads to a decrease in the thermal stab ility. MST/4472.