Stability of Fe-C Martensite–Effect of Zener-Ordering
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 (Refereed)
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.
thermodynamic modeling; zener ordering; fe-c martensite
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-67365DOI: 10.1002/9781118147726.ch33ISI: 000327096700033ScopusID: 2-s2.0-80051692157ISBN: 978-0-47094-319-9OAI: oai:DiVA.org:kth-67365DiVA: diva2:484949
1st World Congress on Integrated Computational Materials Engineering, July 10-14, 2011 • Seven Springs Mountain Resort • Seven Springs, PA
QC 201202032012-02-032012-01-272014-10-06Bibliographically approved