Martensite transformation of sub-micron retained austenite in ultra-fine grained manganese transformation-induced plasticity steel

  • Seok Jae Lee*
  • , Seawoong Lee
  • , Bruno C. De Cooman
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The influence of the chemical composition and the grain size of retained austenite in an ultra-fine grained medium manganese steel on the martensite transformation kinetics was investigated by means of dilatometry. A modified Koistinen-Marburger type exponential function was developed for the martensite transformation kinetics, which includes the influence of the size and the composition of the austenite. Whereas the ultra-fine grained retained austenite had a remarkably low Ms temperature, the kinetics of its transformation to martensite was accelerated.

Original languageEnglish
Pages (from-to)423-429
Number of pages7
JournalInternational Journal of Materials Research
Volume104
Issue number5
DOIs
StatePublished - 2013

Keywords

  • Alloy partitioning
  • Grain refinement
  • Martensite transformation kinetics
  • Transformation-induced plasticity steel
  • Ultra-fine grain

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Petroleum
  • Chemistry
  • Physics & Astronomy

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