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.
|Title of host publication||Progress in heat treatment and surface engineering|
|Editors||E.J. Mittemeijer, J. Grosch|
|Publication status||Published - 2000|
|Event||5th ASM Heat Treatment and Surface Engineering Conference in Europe - Göteborg, Sweden|
Duration: 7 Jun 2000 → 9 Jun 2000
Conference number: 5
|Conference||5th ASM Heat Treatment and Surface Engineering Conference in Europe|
|Period||07/06/2000 → 09/06/2000|
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.