Nonequilibrium thermodynamic modeling of carbon partitioning in quench and partition (Q&P) steel

Amit K. Behera*, G. B. Olson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The influence of partitioning temperature on carbon partitioning during the quench and partition (Q&P) cycle and the associated non-equilibrium phase transformation thermodynamics have been investigated. Lower partitioning temperatures are reported to result in higher carbon partitioning with varying austenite phase fraction. Thermodynamic simulations considering para-equilibrium conditions with an added temperature-dependent effective stored energy contribution have been shown to reasonably predict the retained austenite carbon content. The developed models have been validated with new alloy compositions, QP cycles and data from existing literature.

Original languageEnglish (US)
Pages (from-to)6-10
Number of pages5
JournalScripta Materialia
Volume147
DOIs
StatePublished - Apr 1 2018

Keywords

  • 3DAP
  • HEXRD
  • Para-equilibrium
  • Quench and partition
  • Thermodynamic modeling

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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