Calculation of Heat Treatment Parameters of 22MnB5 Steel based on JMatPro Software
The thermal equilibrium phase composition,isothermal austenitizing curve(TTA),subcooled austenitic continuous transformation curve(CCT),hardenability prediction and mechanical properties after quenching of 22MnB5 high strength steel were calculated by JMatPro 7.0.The results show that the phase transition temperature of 22MnB5 high strength steel is Ac1 = 713.9℃,Ac3 = 812.0℃,Ms =401℃,Mf =290℃.The faster the heating rate of 22MnB5 steel in the continuous heating process,the higher the degree of austenitization and the shorter the homogenization time.In the process of continuous cooling,the yield strength,tensile strength and hardness of steel increase with the increase of cooling speed.When the cooling speed is 100℃/s,the hardness,yield strength and tensile strength reach their maximum values of 481.1HV0.1,1 261 MPa and 1 507.9 MPa respectively.The microstructure,hardness,yield strength and tensile strength of 22MnB5 high strength steel obtained by heat treatment at high temperature and quenching with cold water bath are consistent with the calculated results.
22MnB5 high strength steelJMatPro simulationequilibrium phasemechanical propertieshardenability
国家科技期刊平台
NSTL
万方数据
维普
