摘要
采用Gleeble-3500热模拟试验机研究00Cr12Ni10MoTi钢在变形温度为850~1200℃、应变速率为0.01~10 s^-1,变形程度为60%条件下的热变形行为。基于实验数据计算该钢的热变形激活能,获得其本构方程并进行组织演变分析。结果表明,该钢种的动态再结晶激活能Q=486.484 kJ/mol,变形温度升高或低应变速率条件下更易发生动态再结晶,该钢种获得均匀、细小再结晶晶粒的理想温度区间为1050~1150℃。
00Cr12Ni10MoTi steel is tested with Gleeble-3500 thermal simulation tester for its hot deformation behavior at temperature 850 to 1200℃,strain rate 0.01 to 10 s^-1 and deformation percentage 60%.The hot deformation activation energy is calculated with the test results.The constitutive equation is obtained.and the microstructure evolution is analyzed with metallographic test.The test result reveals the dynamic recrystallization activation energy of the steel is Q=486.484 kJ/mol.With the increase of deformation temperature or decrease of strain rate,the dynamic recrystallization is more likely to occur.The steel can produce uniform and fine recrystallized grain at temperature range of 1050 to 1150℃.
出处
《一重技术》
2020年第3期36-42,55,共8页
CFHI Technology
关键词
马氏体时效不锈钢
动态再结晶
热变形
martensiteagedstainlesssteel
dynamicrecrystalliation
hotdeformation
