Heterogeneous precipitation of niobium carbide in ferrite

Céline Hin, Frédéric Soisson, Philippe Maugis, Yves Bréchet

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

We propose a study of the heterogeneous precipitation of NbC in α-iron by Monte Carlo simulations based on a simple atomic description of the main mechanisms which control the kinetic pathway: - realistic diffusion properties, with a rapid diffusion of C atoms by interstitial jumps and a slower diffusion of Fe and Nb atoms by vacancy jumps - a simple model of dislocation which interacts with solute atoms through local segregation energies and long range elastic field. We study the effect of the supersaturation on the kinetic of precipitation and we show the elastic field associated with the dislocation clearly favored the heterogeneous precipitation of NbC.

Original languageEnglish
Pages771-776
Number of pages6
Publication statusPublished - 2005
Externally publishedYes
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2005 - Phoenix Arizona USA, Phoenix, United States of America
Duration: 29 May 20053 Jun 2005

Conference

ConferenceInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2005
Abbreviated titlePTM 2005
CountryUnited States of America
CityPhoenix
Period29/05/053/06/05

Keywords

  • Heterogeneous precipitation
  • Monte Carlo Simulation
  • Niobium Carbide

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