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Comparison of the kinetics and morphologic properties of titanium, Ti-1.5Ni and Ti-2.5Cu during oxidation in pure oxygen between 600 and 820°C

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Abstract

The kinetics and morphologic oxidation properties of titanium, Ti-1.5Ni and Ti-2.5Cu were compared. Titanium and Ti-1.5Ni have a similar behavior, concerning the kinetics and the oxide micro structure. Copper additions decrease the oxidation rate of titanium. The oxide scales formed on Ti-Cu are thinner and less cracked than those obtained on Ti or Ti-1.5Ni. Copper is found in the oxide scale of Ti-Cu, whereas nickel is not found in the oxide scale of Ti-Ni. The oxidation of titanium and its alloys is controlled chiefly by diffusional phenomena in the oxide scale. Thus the alterations of the oxide scale structure and the slower oxidation rate of Ti-2.5Cu can be attributed to the copper which diffuses towards the gas-oxide interface.

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Author notes

  1. J. E. Lopes Gomes

    Present address: Dept de Metallurgia, Escola de Minas de Ouro Preto, 35400, Ouro Preto, (M.G.), Brasil

Authors and Affiliations

  1. Laboratoire de Métallurgie Physique, Associé au CNRS No. 177, Université de Paris-Sud, Centre d'Orsay, France

    A. M. Huntz

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  1. J. E. Lopes Gomes
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  2. A. M. Huntz
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Gomes, J.E.L., Huntz, A.M. Comparison of the kinetics and morphologic properties of titanium, Ti-1.5Ni and Ti-2.5Cu during oxidation in pure oxygen between 600 and 820°C. Oxid Met 14, 471 (1980). https://doi.org/10.1007/BF00603475

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  • DOI: https://doi.org/10.1007/BF00603475

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