Modeling the oxidation kinetics of titanium alloys: Review, method and application to Ti-64 and Ti-6242s alloys

Autor: Yannick Cadoret, Daniel Monceau, Nicolas Vaché, Ben Dod
Přispěvatelé: Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), AIRBUS Operations Ltd., Airbus (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Corrosion Science
Corrosion Science, Elsevier, 2021, 178, pp.109041. ⟨10.1016/j.corsci.2020.109041⟩
ISSN: 0010-938X
DOI: 10.1016/j.corsci.2020.109041⟩
Popis: International audience; The oxidation kinetics of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo-Si were reviewed in the range 450−650 °C. A method to fit these data was conceived and applied to these alloys, allowing the prediction of mass gain, oxygen diffusion coefficient, embrittlement depth and oxide scale thickness. Prediction diagrams are produced and discussed through the prism of aeronautical applications; discrepancies between modeled and experimental data are discussed. This paper shows that despite Ti-6Al-4V experienced larger mass gains than Ti-6Al-2Sn-4Zr-2Mo-Si, the two alloys have an equivalent behavior in terms of oxygen dissolution and diffusion, over a wide range of exposure durations.
Databáze: OpenAIRE