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

D.M. Gordin; A. Guillou; I. Thibon; Marcel Bohn; D. Ansel; T. Gloriant

doi:10.1016/j.jallcom.2007.02.155

Journal articles

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

D.M. Gordin ¹ A. Guillou ¹ I. Thibon ¹ Marcel Bohn ² D. Ansel ¹ T. Gloriant ^{1, *}

* Corresponding author

1 ISCR - Institut des Sciences Chimiques de Rennes

2 LDO - Domaines Océaniques

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.

Keywords : Metals Gas–solid reactions Scanning electron microscopy Surface electron diffraction

Document type :

Journal articles

Domain :

Sciences of the Universe [physics] / Earth Sciences / Geochemistry

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Submitted on : Friday, November 14, 2008 - 3:21:48 PM
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Duplex nitriding treatment of a beta-metastable Ti94Mo6 alloy for biomedical applications

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

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