Present stage and future prospects of development of compressor material

Titanium alloys are attractive for use in the compressor of jet engines because of their high strength‐to‐density ratio. Titanium alloys with high temperature capability for high‐pressure compressor components have been developed to increase thermal efficiency of jet engines, resulting in the reduction of CO2 emission and fuel consumption. This study describes the development of high‐temperature titanium alloys, mainly focusing on the effects of alloy composition and microstructure on mechanical properties. Titanium matrix composites and titanium aluminides have also been extensively studied for future application in high‐pressure compressors. In addition, in this study, melting technology of titanium alloys has been introduced because it is a key technology to improve the performance of high‐temperature titanium components. Titanium alloys are attractive for use in the compressor of jet engines because of their high strength‐to‐density ratio. This study describes the development of high‐temperature titanium alloys, mainly focusing on the effects of alloy composition and microstructure on mechanical properties. Titanium matrix composites and titanium aluminides have also been extensively studied for future application in high‐pressure compressors. In addition, in this study, melting technology of titanium alloys has been introduced.