Practical Use of Hot-Forged-Type Ti-42Al-5Mn and Various Recent Improvements

The use of a hot-forged TiAl alloy enables the fabrication of large parts that are difficult to manufacture by casting or isothermal forging. Ti-42Al-5Mn (at%) is the world's first TiAl alloy in this category and has been used to manufacture practical large-scale structural defense components since around 2010. This paper discusses the developmental status and practical applications of this alloy. In addition, recent developments in process stabilization and improvements in material properties, which have been issues for the practical use of this TiAl alloy in the past, are also discussed.

Automated summary

The use of hot-forged TiAl alloy allows for the manufacturing of large parts that are challenging to produce through casting or isothermal forging. Ti-42Al-5Mn (at%) is the first TiAl alloy in this category and has been utilized for the production of practical large-scale structural defense components since around 2010. This paper discusses the developmental status, practical applications, process stabilization, and material property enhancements of this alloy.