Verbindungsschichtbildung beim Nitrieren und Nitrocarburieren: Wissenstand und zukünftiger Forschungsbedarf

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Abstract

The development of the compound layer during gaseous nitriding and nitrocarburizing 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 nitrogen from the surface by solid state diffusion and desorption or the competition with a carburizing reaction. During compound layer growth the nitriding kinetics are 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 nitrocarburizing.
Original languageEnglish
JournalH T M
Volume66
Issue number2
Pages (from-to)56-67
ISSN1867-2493
Publication statusPublished - 2011

Keywords

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

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