On the effect of pre-oxidation on the kinetics of gaseous nitriding of iron

Peter B. Friehling, Marcel A.J. Somers

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

    Abstract

    Preheating in an oxidising atmosphere is frequently used prior to gaseous nitriding. The effects of this preoxidation have been investigated and it is found that a preoxidation decrease the incubation time for the nucleation of iron nitrides. This results in a more homogeneous nucleation of iron nitrides, which leads to a more uniform thickness of the compound layer. A second effect is a thicker compound layer, which may stem from a higher surface concentration.
    Original languageEnglish
    Title of host publicationProgress in heat treatment and surface engineering
    EditorsE.J. Mittemeijer, J. Grosch
    PublisherASM International
    Publication date2000
    Publication statusPublished - 2000
    Event5th ASM Heat Treatment and Surface Engineering Conference in Europe - Göteborg, Sweden
    Duration: 7 Jun 20009 Jun 2000
    Conference number: 5

    Conference

    Conference5th ASM Heat Treatment and Surface Engineering Conference in Europe
    Number5
    CountrySweden
    CityGöteborg
    Period07/06/200009/06/2000

    Cite this

    Friehling, P. B., & Somers, M. A. J. (2000). On the effect of pre-oxidation on the kinetics of gaseous nitriding of iron. In E. J. M. J. G. (Ed.), Progress in heat treatment and surface engineering ASM International.