ATI Titan 171TM a new high temperature titanium alloy with improved strength and creep resistance

Titanium alloys are essential to the aerospace industry, comprising 15 to 25% by weight of modern jet engine components due to the high strength to weight ratio and innate resistance to corrosion. However, titanium alloys are limited by their maximum service temperature due to the reduction in mechanical properties and poor oxidation resistance at elevated temperatures. Common high temperature Ti alloys, such as ATI 6-2-4-2TM (a near alpha alloy) and ATI 17TM (an alpha beta alloy with high beta content) offer a balance of creep resistance, fatigue life, and elevated temperature strength. The newly developed ATI Titan 171TM alloy is designed for superior elevated temperature strength and creep behavior over the incumbent alloys. This presentation will highlight the effect of heat treatment on microstructure and mechanical properties of cast and wrought ATI Titan 171 TM and showcase its printability through laser powderbed fusion.