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Article Dans Une Revue Corrosion Science Année : 2024

Quantification and kinetics of nitrogen mass gain during high temperature oxidation of titanium in air

Résumé

Improving the high-temperature oxidation resistance of titanium alloys in air is a prerequisite for extending their use in turbojet engines. A better understanding of the role of atmospheric nitrogen is required for this purpose. Here, we studied the insertion kinetics of nitrogen in titanium at 650 °C in air up to 100 h. Moreover, the nitrogen mass gain, and its ratio over the total mass gain, were quantified as a function of the oxidation duration by using Nuclear Reaction Analysis. It was found that nitrogen inserts into titanium with a parabolic kinetics and a rate constant about 1500 times smaller than oxygen.
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hal-04629452 , version 1 (29-06-2024)

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Victor Pacorel, Pascal Berger, Virginie Moutarlier, M. C. Marco de Lucas, Tony Montesin, et al.. Quantification and kinetics of nitrogen mass gain during high temperature oxidation of titanium in air. Corrosion Science, 2024, 234, pp.112137. ⟨10.1016/j.corsci.2024.112137⟩. ⟨hal-04629452⟩
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