Cold Deformation Behavior of High Nitrogen Austenitic Stainless Steel
The effects of cold compression on the tensile properties and microstructure evolution of austenitic stainless steel with high nitrogen content of 0.83%were studied.Quasi-static tensile experiments were carried out on samples with different cold compression rates.The results show that the material shows good strength and ductility over the whole range of cold compression rates.High nitrogen austenitic stainless steel is greatly affected by cold compression.With the increase of cold compression rate,the strength increases sharply and plasticity decreases greatly,mainly because of the evolution of microstructure after cold compression.After 85%cold compression treatment,the yield strength of high nitrogen austenitic stainless steel is increased by about 3 times to 1507 MPa,and the tensile strength is increased by about 2 times to 1659 MPa.
high nitrogen steelcold deformationmicrostructuremechanical properties
NETL
NSTL
万方数据
