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Stability of Fe-C Martensite–Effect of Zener-Ordering
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Physical Metallurgy.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Computational Thermodynamics.ORCID iD: 0000-0001-5031-919X
2011 (English)In: Proceedings of the 1st World Congress on Integrated Computational Materials Engineering (ICME) / [ed] John Allison; Peter Collins; George Spanos, United States of America: John Wiley & Sons, 2011, 235-240 p.Conference paper, Published paper (Refereed)
Abstract [en]

A model has been developed to describe thermodynamic properties of body centered tetragonal (bct) martensite and body centered cubic (bcc) states of iron-carbon interstitial solid solutions by applying (Fe)1(C,Va)1(C,Va)1(C,VA)1. The order-disorder transition in dilute solid solutions is described using experimental data, and the effect of so called Zener ordering on the stability of martensite is evaluated. From the proposed thermodynamic model it is evident that the selection of model parameters of the bcc phase has an important physical meaning related to the redistribution of carbon atoms prior to carbide precipitation (spinodal decomposition in Fe-C martensite during early stages of aging).

Place, publisher, year, edition, pages
United States of America: John Wiley & Sons, 2011. 235-240 p.
Keyword [en]
thermodynamic modeling; zener ordering; fe-c martensite
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-67365DOI: 10.1002/9781118147726.ch33ISI: 000327096700033Scopus ID: 2-s2.0-80051692157ISBN: 978-0-47094-319-9 (print)OAI: oai:DiVA.org:kth-67365DiVA: diva2:484949
Conference
1st World Congress on Integrated Computational Materials Engineering, July 10-14, 2011 • Seven Springs Mountain Resort • Seven Springs, PA
Note

QC 20120203

Available from: 2012-02-03 Created: 2012-01-27 Last updated: 2014-10-06Bibliographically approved

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Selleby, Malin

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