Effect of the Nitriding Potential on the Layer Growth Kinetics of Nitrided Pure Iron

Mourad Keddam

doi:10.4028/www.scientific.net/DDF.258-260.172

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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 258-260Effect of the Nitriding Potential on the Layer...

Effect of the Nitriding Potential on the Layer Growth Kinetics of Nitrided Pure Iron

Abstract:

In this work, an approach of reactive nitrogen diffusion is presented and applied to the iron gas nitriding process. A kinetic model based on Fick's laws is used to simulate the layer growth kinetics of a biphase configuration composed of ε and γ’ iron nitrides grown on the pure iron substrate. This diffusional approach, under certain assumptions, reveals the influence of the nitriding potential on the layer growth kinetics during the gas nitriding of pure iron. Some simulation results are presented and discussed.

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Periodical:

Defect and Diffusion Forum (Volumes 258-260)

Pages:

172-175

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.258-260.172

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Online since:

October 2006

Authors:

Mourad Keddam

Keywords:

Fick's Law, Gas Nitriding, Growth Kinetic, K_N-T Diagram, Nitriding Potential

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References

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08 Nitriding potential ( Pa ) b = 0. 063 µm. s γ α ' - 0. 5 - 0. 5.

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