A phase-field study of the physical concepts of martensitic transformations in steels
2012 (English)In: Materials Science & Engineering: A, ISSN 0921-5093, Vol. 538, 173-181 p.Article in journal (Refereed) Published
A 3D elastoplastic phase-field model is employed to study various driving forces associated withmartensitic transformations, plastic deformation behavior as well as the habit plane concept. Usage ofthermodynamic parameters corresponding to Fe–0.3%C alloy in conjunction with anisotropic physicalparameters of steels as the simulation parameters have yielded the results in reasonable agreement withexperimental observations. From the simulation results, it is concluded that there exist three critical drivingforces that control the transformation and also that the plastic deformation behavior of the materialgreatly affects the transformation. The model predicts the initial habit plane of the first infinitesimalunit of martensite as (−1 1 1). The model also predicts that, as the transformation progresses, the abovementioned martensite domain rotates and finally orients along the new habit plane of (−2 1 1).
Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 538, 173-181 p.
Phase-field simulations, Martensitic transformations, Driving force, Plasticity, Microstructure
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-72508DOI: 10.1016/j.msea.2012.01.026ISI: 000301901200023ScopusID: 2-s2.0-84857109361OAI: oai:DiVA.org:kth-72508DiVA: diva2:487711
QC 201204242012-01-312012-01-312012-05-25Bibliographically approved