The effect of alloying element partitioning on the interface velocity during the isothermal bainite formation

Research output: Contribution to conferenceAbstractScientific

Abstract

Following a previous study on the effect of alloying elements on the isothermal bainitic ferrite formation in quaternary steels with the mean field approximation, the Gibbs Energy Balance (GEB) model is further developed to incorporate the effect of partioning of alloying element in both austenite and ferrite domains. In the new model, distributions of alloying elements are updated according to their initial profiles, progresses of the interface and corresponding local equilibrium condition at each time step. The dissipation of carbon (interstitial) diffusion inside and across the interface is calculated and added to the contributions of substitutional alloying elements, e.g. Mn, Si, Ni and Mo. The new model enables a detailed analysis of the effect of alloying element partitioning on the interface velocity during the entire transformation. The results are compared to previous simulations and the metallurgical insights are discussed.

Original languageEnglish
Pages925-926
Number of pages2
Publication statusPublished - 1 Jan 2015
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada
Duration: 28 Jun 20153 Jul 2015

Conference

ConferenceInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
Abbreviated titlePTM 2015
CountryCanada
CityWhistler
Period28/06/153/07/15

Keywords

  • Bainite
  • Gibbs Energy Balance
  • Modelling
  • Phase transformation

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    Farahani, H., Xu, W., & Van Der Zwaag, S. (2015). The effect of alloying element partitioning on the interface velocity during the isothermal bainite formation. 925-926. Abstract from International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015, Whistler, Canada.