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MODELING OF ISOTHERMAL AUSTENITE TO FERRITE TRANSFORMATION IN A Fe-C ALLOY BY PHASE-FIELD METHOD
Zhang Jun1,2; Zheng Chengwu2; Li Dianzhong2
Corresponding AuthorZheng Chengwu(cwzheng@imr.ac.cn)
2016-11-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume52Issue:11Pages:1449-1458
AbstractAustenite-to-ferrite transformation in modern steels is a key metallurgical phenomenon as it can be exploited to produce microstructures that are closely associated with significant improvement of their properties. Both experimental and theoretical studies of this transformation have received much attention. In particular, in recent years, considerable efforts have been directed to the development of numerical models for adequate quantitative descriptions of the nucleation and growth of ferrite grains as well as the overall transformation kinetics. In this work, a modified multi-phase field model has been developed to simulate the isothermal gamma-alpha transformation in a Fe C alloy. This model takes both the effect of a finite interface mobility and a finite diffusivity into account, which hence enables a clear description of the mixed-mode nature of the transformation. In contrast to the diffusion controlled phase transformation model, the carbon concentration in front of the moving gamma-alpha interface is found to be non-equilibrium under this circumstance. In order to study the microstructural behavior and kinetics over the entire temperature range of the phase transformation, three different isothermal transformation processes have been
Keywordphase- field method austenite ferrite carbon concentration field mix-mode transformation mode
Funding OrganizationNational Natural Science Foundation of China
DOI10.11900/0412.1961.2015.00651
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51371169] ; National Natural Science Foundation of China[51401214]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000390080800011
PublisherSCIENCE PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/123500
Collection中国科学院金属研究所
Corresponding AuthorZheng Chengwu
Affiliation1.Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhang Jun,Zheng Chengwu,Li Dianzhong. MODELING OF ISOTHERMAL AUSTENITE TO FERRITE TRANSFORMATION IN A Fe-C ALLOY BY PHASE-FIELD METHOD[J]. ACTA METALLURGICA SINICA,2016,52(11):1449-1458.
APA Zhang Jun,Zheng Chengwu,&Li Dianzhong.(2016).MODELING OF ISOTHERMAL AUSTENITE TO FERRITE TRANSFORMATION IN A Fe-C ALLOY BY PHASE-FIELD METHOD.ACTA METALLURGICA SINICA,52(11),1449-1458.
MLA Zhang Jun,et al."MODELING OF ISOTHERMAL AUSTENITE TO FERRITE TRANSFORMATION IN A Fe-C ALLOY BY PHASE-FIELD METHOD".ACTA METALLURGICA SINICA 52.11(2016):1449-1458.
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