Изучение структурных и фазовых особенностей поверхностных слоев азотированных аустенитных сталей методами рентгеновской дифрактометрии

Abstract

We study structural and phase features of surface layers of nitrogen austenite steel modified by ion-plasma nitriding at different temperatures using X-ray diffractometry. The size of crystallites, the lattice parameters, and the residual stress was detected. It has been shown that in a sample nitrided at a temperature of 400°C, a main phase is an expanded austenite (S phase). As the temperature of plasma nitriding increases, the content of the S phase in the surface layer decreases.