Effect of tungsten addition on mechanical properties of Fe_3Al-Based Alloys

摘要

The microstructure and mechanical properties of Fe_3Al-based alloys containing tungsten were investigated. Tungsten added to Fe_3Al-based alloys results in significant increases of tensile strength and creep repture life, but slight decrease of RT ductility. The addition of tungsten combined with niobium or molybde - num is more effective on improving creep resistance and yield strength at the high temperature of 600 deg. C.