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Duplex nitriding treatment of a beta-metastable Ti94Mo6 alloy for biomedical applications

Abstract : In the present work, nitridation process of a biocompatible beta-type Ti94Mo6 (at.%) alloy was carried out to optimize the microhardness and brittleness surface characteristics. We propose a duplex treatment consisting of a superficial gas nitriding at high temperature followed by an annealing treatment. By this treatment, the superficial TiN layer is transformed into a nitrogen rich α-Ti layer with a superior adherence on the substrate. The coated Ti94Mo6 alloy combines the profitable bulk properties of the beta-type microstructure and a superior superficial microhardness reducing the wear debris in service for a use as prosthetic device.
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https://hal-insu.archives-ouvertes.fr/insu-00338844
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Submitted on : Friday, November 14, 2008 - 3:21:48 PM
Last modification on : Thursday, March 5, 2020 - 1:56:32 PM

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D.M. Gordin, A. Guillou, I. Thibon, Marcel Bohn, D. Ansel, et al.. Duplex nitriding treatment of a beta-metastable Ti94Mo6 alloy for biomedical applications. Journal of Alloys and Compounds, Elsevier, 2008, 457 (1-2), pp.384-388. ⟨10.1016/j.jallcom.2007.02.155⟩. ⟨insu-00338844⟩

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