Abstract High-temperature titanium alloys allow broad application prospects in hypersonic aircraft. They have ideal
lightweight and heat-resistant metallic materials, enhancing the performance and reliability of hypersonic aircraft in extreme flight environments, thus achieving higher speeds and longer flight distances. Considering the services of thermal structures in China’s hypersonic aircraft, starting from the characteristics of high-temperature titanium alloys, this paper has reviewed the latest development status of high-temperature titanium alloys domestically and abroad. It focused on introducing China’s independent research, development and application of 550-650 °C high-temperature titanium alloys. To achieve higher operating temperature requirements, the research and development of a new 700-750 °C high-temperature titanium alloy Ti750S was proposed, and the respective application directions and prospects of high-temperature titanium alloys for future hypersonic aircraft were prospected.
2024, Vol. 7 
