Mechanical properties and microstructure evolution of high-manganese (0.9 C – 13.95 Mn) steel during aging

The influence of temperature on the structural and mechanical properties (0.9 C - 13.95 Mn) steel was investigated in this work. high-manganese has underwent aging treatments at temperatures 700, 750, 800 850 °C for different times. experimental techniques used are hardness test, scanning electron microscopy, optical microscopy X-ray diffraction. behavior microstructural evolution during almost same. characterized by a rapid hardening while overaging slow softening. In aging, dispersion fine M 7 3 carbides austenite led to an increase hardness. overaging, softening caused coarsening carbides.