Residual Ferrite Control of 9Cr ODS Steels by Tailoring Reverse Austenite Transformation

作     者：Xiaosheng Zhou Hao Chen Chenxi Liu Yongchang Liu Xiaosheng Zhou;Hao Chen;Chenxi Liu;Yongchang Liu

作者机构：Key Laboratory for Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China State Key Lab of Hydraulic Engineering Simulation and SafetySchool of Materials Science and EngineeringTianjin UniversityTianjin 300354China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2021年第34卷第2期

页      面：187-195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：financially supported by the National Natural Science Foundation of China(No.52034004) the China Postdoctoral Science Foundation Grant(No.2019M650028) 

主　　题：Oxide dispersion strengthened steels Residual ferrite Austenite transformation 

摘      要：By tailoring the reverse austenite transformation behavior of 9 Cr oxide dispersion strengthened(ODS)ferritic/martensitic steels,the residual ferrite in ODS steels can be *** reverse austenite transformation behavior of ODS steels is closely related to the initial microstructure conditions prior to austenite *** the spark plasma sintered steels,both the amount and size of residual ferrite decrease with increasing heating ***,high heating rate will increase the amount and size of residual ferrite in annealed ODS *** an isothermal treatment is performed at temperatures above Ac 1,lower isothermal temperature has a more evident effect on the ferrite distribution in spark plasma sintered steels than that in annealed ones.