Development of compound layer during nitriding and nitrocarburising; current status and future challenges: IFHTSE Global 21: heat treatment and surface engineering in the twenty-first century. Part 14

Marcel A. J. Somers (Invited author)

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The development of the compound layer during gaseous nitriding and nitrocarburising of Fe based material is described. The first nucleation of the compound layer at the surface depends on the competition between the dissociation of ammonia and the removal of nitrogen from the surface by solid state diffusion and desorption or the competition with a carburising reaction. During compound layer growth, the nitriding kinetics is determined by a combination of solid state diffusion of interstitial elements and the kinetics of the surface reactions. Moreover, phase transformations within the compound layer play a role in determining the overall layer growth kinetics during nitrocarburising.
Original languageEnglish
JournalInternational Heat Treatment and Surface Engineering
Volume5
Issue number1
Pages (from-to)7-16
ISSN1749-5148
DOIs
Publication statusPublished - 2011
EventEuropean Conference on Heat Treatment - Aachen, Germany
Duration: 29 Apr 201030 Apr 2010

Conference

ConferenceEuropean Conference on Heat Treatment
CountryGermany
CityAachen
Period29/04/201030/04/2010

Bibliographical note

Based on a presentation at the conference

Keywords

  • Nitrocarburising
  • Surface treatment
  • Nitriding
  • Diffusion
  • Layer growth kinetics

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