Hot deformation behavior and microstructure evolution of an Fe–30Cr–2Mo ultra-pure super ferritic stainless steel
Fe30Cr2Mo 极端纯的超级以铁酸盐为主要成的不锈钢的热变丑行为和微观结构进化作者机构：Institute of Metal ResearchChinese Academy of SciencesShenyang110016LiaoningChina School of Materials Science and EngineeringUniversity of Science and Technology of ChinaShenyang110016LiaoningChina School of Materials Science and EngineeringUniversity of New South WalesSydneyNSW2052Australia
出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)
年 卷 期：2021年第28卷第10期
页 面：1291-1304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）]
主 题：Super ferritic stainless steel Hot compression Constitutive equation Processing map Microstructure evolution
摘 要：The hot deformation behavior and microstructure evolution of an Fe–30Cr–2Mo ultra-pure super ferritic stainless steel were investigated at the temperature range of 950–1150℃ and strain rate varying from 0.01 to 10 s^(−1).A strain compensated constitutive equation based on the Arrhenius-type model was established to predict the flow *** hot processing map based on the dynamic materials model was achieved to identify the optimum processing *** addition,the features of microstructure evolution combined with the processing map were systematically *** experimental results revealed that the flow stress increased with decreasing deformation temperature or increasing strain *** recovery was confirmed to be the predominant softening *** values of flow stress predicted by the strain compensated constitutive equation agreed well with the experimental *** extent of dynamic recrystallization and recrystallized grain size increased with increasing deformation temperature or decreasing strain rate,and the continuous dynamic recrystallization was attributed to be the predominant mechanism of recrystallization during hot *** optimum hot working parameters were determined to be the deformation temperature of 1070–1150℃ and strain rate of 0.1–1 s^(−1) with a peak power dissipation efficiency of 42%.
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