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

被引：12
作者：
Gordin, D. M. [1 ]
Guillou, A. [1 ]
Thibon, I. [1 ]
Bohn, M. [2 ]
Ansel, D. [1 ]
Gloriant, T. [1 ]
机构：
[1] INSA Rennes, CNRS, UMR 6226 Sci Chimiques Rennes Chim Met, F-35043 Rennes, France
[2] IFREMER, Ctr Brest, CNRS, UMR 6538, F-29280 Plouzane, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 457卷 / 1-2期
关键词：
metals; gas-solid reactions; scanning electron microscopy; surface electron diffraction;
D O I：
10.1016/j.jallcom.2007.02.155
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 alpha-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. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：384 / 388
页数：5
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