Study of Microstructure and Properties of High Chromium Iron After Different Treatment
The microstructure and mechanical properties of high chromium iron after different treatment were studied, and the effect of modification and heat treatment on the microstructure and mechanical properties of high chromium iron was analyzed. The results show that, after modification, the microstructure of high chromium iron gets small, hardness and toughness increase; after modification and heat treatment, the microstructure of high chromium iron gets smaller, the mechanical properties increase more. The reason is that RE-Mg can thin matrix- structure and carbonization, and heat treatment can increase carbon content in matrix and make the closed angle of carbonization more smooth.