Grain size dependence of mechanical, corrosion and tribological properties of high nitrogen stainless steels

摘要: Austenitic stainless steels have been indispensable for the progress of technology during last 80 years. Due to cost nickel and prospective allergic reactions caused by this element, more laboratories industries are trying develop a new class austenitic with low content. In order maintain microstructure, reduction is balanced nitrogen addition. Nitrogen addition also very effective improving yield strength corrosion resistance without reducing ductility toughness. further increase strength, it possible combine effect grain refining. The purpose study examine relationship between microstructures mechanical, tribological properties high steel an ultrafine grained structure.