APPLICATION OF COMBINED METHOD OF STEREOLOGY AND COMPUTATIONAL THERMODYNAMICS IN HIGH-CHROMIUM F/M STEELS FOR SUPERCRITICAL WATER-COOLED REACTOR
Reduced activation 9％-12％ Cr F/M (ferrite/martensite) steels are candidate materials used to manufacture key components in supercritical water cooled reactor for future power generation,in which only a very small fraction of ferrite phase is allowed to appear.Stereology is a necessary tool to determine the fraction of existing phases (ferrite and martensite) in the steel,but is not possible to be applied to all the newly designed steel compositions and heat treatments due to its energy- and time-consuming procedures of sample preparation and measurement.A combination method of Stereology and CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) is then proposed for aiding the chemical composition design and heat treatment process design,and tested using 2 grades of high-Cr F/M steels in this paper.The advantages and limitations of this Stereology-CALPHAD combination method are further discussed and demonstrated.
Volume fraction mass fraction stereology Thermo-Calc software ferrite/martensite steels supercritical water cooled reactor (SCWR)
X.Xiao R.M.Kong G.Q.Liu B.F.Hu
School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100 School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100
国际会议
北京
英文
244-248
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）