焊管2023，Vol.46Issue(12)：34-39,6.DOI:10.19291/j.cnki.1001-3938.2023.12.006
基于JMatPro软件对22MnB5钢热处理参数的计算
Calculation of Heat Treatment Parameters of 22MnB5 Steel based on JMatPro Software
摘要
Abstract
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.关键词
22MnB5高强钢/JMatPro模拟/平衡相/力学性能/淬透性Key words
22MnB5 high strength steel/JMatPro simulation/equilibrium phase/mechanical properties/hardenability分类
金属材料引用本文复制引用
李治国,娄国栋..基于JMatPro软件对22MnB5钢热处理参数的计算[J].焊管,2023,46(12):34-39,6.基金项目
国家自然科学基金面上项目"基于薄带连铸的高性能微纳米晶钢非平衡组织调控及其增强增塑机理"(项目编号51974085). （项目编号51974085）
