On the electron structure of Mn-, Ni- and Cr-Ni-Mn austenite with different stacking fault energy

The electron concentration study of the austenites by EELS shows that the conduction band of transition fcc alloys is formed by 4s electrons and also by 3d electrons of alloying elements. A relation of these types of electrons determines a kinetic energy of the electron system and therefore the SFE of the alloy. The influence of carbon and nitrogen on the electron concentration was considered for some high-alloyed austenites.