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Thermodynamic evaluation of reaction abilities of structural units in Fe-C binary melts based on atom-molecule coexistence theory
Yang, Xue-min1; Li, Jin-yan2; Duan, Dong-ping1; Yan, Fang-jia1; Zhang, Jian3
2018
Source PublicationJOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN1006-706X
Volume25Issue:1Pages:37-56
Abstract

The reaction abilities of structural units in Fe-C binary melts over a temperature range above the liquidus lines have been evaluated by a thermodynamic model for calculating the mass action concentrations N-i of structural units in Fe-C binary melts based on the atom-molecule coexistence theory (AMCT), i.e., the AMCT-N-i model, through comparing with the predicted activities a(R,i) of both C and Fe by 14 collected models from the literature at four temperatures of 1833, 1873, 1923, and 1973 K. Furthermore, the Raoultian activity coefficient gamma(0)(C) of C in infinitely dilute Fe-C binary melts and the standard molar Gibbs free energy change Delta(sol)G(m,Cdis(1)->|C|w[C]=1.0)(circle minus,%) of dissolved liquid C for forming w([C]) as 1.0 in Fe-C binary melts referred to 1 mass% of C as reference state have also been determined to be valid. The determined activity coefficient ln gamma(C) of C and activity coefficient ln gamma(Fe) of Fe including temperature effect for Fe-C binary melts can be described by a quadratic polynomial function and a cubic polynomial function, respectively.

KeywordFe-c Binary Melt Carbon Activity Iron Activity Thermodynamic Evaluation Thermodynamic Model Mass Action Concentration Atom-molecule Coexistence Theory (Amct)
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1007/s42243-017-0008-9
Indexed BySCI
Language英语
WOS KeywordCao-sio2-mgo-al2o3 Ironmaking Slags ; Representation Reaction Abilities ; Prediction Model ; Sulfide Capacity ; Ion ; Carbon ; System ; Range ; Iron
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
Funding OrganizationBeijing Natural Science Foundation(2182069) ; National Natural Science Foundation of China(51174186)
WOS IDWOS:000425170700005
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24012
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.China Met Ind Planning & Res Inst, Dept Met & Raw Mat, Beijing 100711, Peoples R China
3.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Yang, Xue-min,Li, Jin-yan,Duan, Dong-ping,et al. Thermodynamic evaluation of reaction abilities of structural units in Fe-C binary melts based on atom-molecule coexistence theory[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2018,25(1):37-56.
APA Yang, Xue-min,Li, Jin-yan,Duan, Dong-ping,Yan, Fang-jia,&Zhang, Jian.(2018).Thermodynamic evaluation of reaction abilities of structural units in Fe-C binary melts based on atom-molecule coexistence theory.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,25(1),37-56.
MLA Yang, Xue-min,et al."Thermodynamic evaluation of reaction abilities of structural units in Fe-C binary melts based on atom-molecule coexistence theory".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 25.1(2018):37-56.
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