Titanium thermodiffusional nitriding by CO2 laser: process parameters controlling the nitride growth

Herve L'Enfant; Patricia Laurens; Marie Christine Sainte Catherine; Jacques Amouroux

doi:10.1117/12.251165

23 September 1996 Titanium thermodiffusional nitriding by CO2 laser: process parameters controlling the nitride growth

Herve L'Enfant, Patricia Laurens, Marie Christine Sainte Catherine, Jacques Amouroux

Proceedings Volume 2789, High-Power Lasers: Applications and Emerging Applications; (1996) https://doi.org/10.1117/12.251165
Event: Lasers, Optics, and Vision for Productivity in Manufacturing I, 1996, Besancon, France

Abstract

Solid state nitriding of titanium under cw CO₂ laser was investigated. The nitriding kinetics were studied in the case of CO₂ laser treatment in isothermal conditions, and were compared to those obtained by using a conventional heating system. Identical kinetics rate constants and activation energy were obtained; therefore CO₂ irradiation of the titanium surface did not influence nitride growth. Studying nitriding treatment in non isothermal conditions showed that high heating rates induced modifications of the nitride morphology. At last, we investigated the evolution of the CO₂-surface coupling during the nitriding treatment. It was found that it depended only on the surface temperature and the substrate surface roughness since the growth of a few micrometers which nitride layer did not modify the coupling.

Citation Download Citation

Herve L'Enfant, Patricia Laurens, Marie Christine Sainte Catherine, and Jacques Amouroux "Titanium thermodiffusional nitriding by CO2 laser: process parameters controlling the nitride growth", Proc. SPIE 2789, High-Power Lasers: Applications and Emerging Applications, (23 September 1996); https://doi.org/10.1117/12.251165

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