Kinetic analysis of austenite transformation for B1500HS high-strength steel during continuous heating

作     者：Mu-yu Li Dan Yao Liu Yang Hao-ran Wang Ying-ping Guan Mu-yu Li;Dan Yao;Liu Yang;Hao-ran Wang;Ying-ping Guan

作者机构：Key Laboratory of Advanced Forging&Stamping Technology and Science(Ministry of Education of China)Yanshan UniversityQinhuangdao 066004China School of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2020年第27卷第11期

页      面：1508-1516页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was financially supported by the Natural Science Foundation of Hebei Province of China(No.E2018203254) the Scientific Research Program of Hebei Province Education Department,China(No.ZD2019013) 

主　　题：B1500HS high-strength steel dilatometric curve austenite transformation kinetic equation Johnson-Mehl-Avuami model 

摘      要：The dilatometric curves of B1500HS high-strength steel at different heating rates were measured by a Gleeble-3800 thermal simulator and analyzed to investigate the effect of heating rate on *** show that the value of starting temperature and ending temperature of austenite transformation increase with the rise of heating rates,whereas the temperature interval of austenite formation *** kinetic equation of austenite transformation was solved using the Johnson–Mehl–Avrami model,and the related parameters of the equation were analyzed by the Kissinger *** those calculations,the activation energy of austenite transformation is 1.01×10^6 J/mol,and the values of kinetic parameters n and ln k0 are 0.63 and 103.03,*** relationship between the volume fraction of austenite and the heating time at different heating rates could be predicted using the kinetic *** predicted and experimental results were compared to verify the accuracy of the kinetic *** microstructure etched by different corrosive solutions was analyzed,and the reliability of kinetic equation was further verified from the microscopic perspective.