Introduction of precipitation hardening stainless steel

Precipitation hardening stainless steel refers to the addition of different types and quantities of strengthening elements on the basis of the chemical composition of stainless steel, and the precipitation of different types and quantities of carbides, nitrides, carbonitrides and intermetallic compounds through the precipitation hardening process, which not only improves the strength of steel A type of high-strength stainless steel that maintains sufficient toughness. Precipitation hardening stainless steel can be divided into three types according to the metallographic structure of the matrix: martensitic, semi-austenitic and austenitic.