Study of the Role of Nitrogen in the Oxidation of Titanium-Based Alloys by Changing the Reaction Gas
Kevin Gautier,
Daniel Monceau,
Enrica Epifano
et al.
Abstract:The role of nitrogen in the oxidation of Ti-2W, Ti-10Al-2W (at.%) and Ti6242S was investigated using experiments in air and in Ar-20%O2, and two-stage experiments where the reaction gas was switched from one mixture to the other. When switching from Ar-20%O2 to air, the oxidation rates first increased during a short period, then decreased. This surge of mass gain following the introduction of air was attributed to N pickup, forming a nitride layer and a N-enriched zone in the alloy, below the oxide layer. The … Show more
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