The kinetics of lath martensitic transformation

G. Ghosh*, G. B. Olson

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations

Abstract

The multicomponent solution thermodynamics, a model for barrierless heterogeneous martensitic nucleation, a model for the composition and temperature dependence of the shear modulus, and a set of unique interfacial kinetic parameters are integrated to model the kinetics of lath martensitic transformation. It is shown that Ms in multicomponent alloys can be predicted within ±40K. The geometric partitioning of austenite grain and the dependence of average lath volume on the fraction transformed is established by a careful analysis of lath microstructure. The main contribution of lath martensitic transformation is due to autocatalytically generated defects.

Original languageEnglish (US)
Pages (from-to)139-142
Number of pages4
JournalJournal De Physique. IV : JP
Volume112 I
DOIs
StatePublished - Oct 2003
EventInternational Conference on Martensitic Transformations - Espoo, Finland
Duration: Jun 10 2002Jun 14 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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