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A Thermodynamic-Based Model to Predict the Fraction of Martensite in Steels
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-0337-082X
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0003-1102-4342
2016 (English)In: Metallurgical and Materials Transactions. A, ISSN 1073-5623, E-ISSN 1543-1940, Vol. 47A, no 9, 4404-4410 p.Article in journal (Refereed) Published
Abstract [en]

A thermodynamic-based model to predict the fraction of martensite in steels with undercooling has been developed. The model utilizes the thermodynamic driving force to describe the transformation curve and it is able to predict the fraction of athermal martensite at quenching to different temperatures for low alloy steels. The only model parameter is a linear function of the martensite start temperature (M (s)), and the model predicts that a steel with a higher M (s) has a lower difference between the martensite start and finish temperatures. When the present model is combined with a previously developed thermodynamic-based model for M (s), the model predictions of the full martensite transformation curve with undercooling are in close agreement with literature data.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 47A, no 9, 4404-4410 p.
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-192719DOI: 10.1007/s11661-016-3604-6ISI: 000380721600009Scopus ID: 2-s2.0-84975126858OAI: oai:DiVA.org:kth-192719DiVA: diva2:974318
Note

QC 20160926

Available from: 2016-09-26 Created: 2016-09-20 Last updated: 2017-11-21Bibliographically approved

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Huyan, FeiHedström, PeterHöglund, LarsBorgenstam, Annika
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