

Author: Gavril L. Ghalla E. Fiseta M. Knystautas E.J.
Publisher: Maney Publishing
ISSN: 0008-4433
Source: Canadian Metallurgical Quarterly, Vol.38, Iss.2, 1999-04, pp. : 113-117
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The corrosion resistance of titanium surface-alloyed with palladium and nitrogen obtained by different techniques of surface modification was investigated in a simulated physiological solution. Ti–Pd laser-surface-alloys were prepared by ion beam and laser beam techniques, whereas TiN surfacealloys were obtained by laser-gas-alloying. The results proved that the Ti–Pd laser-surface-alloys have the better corrosion resistance in the quasi-active state. In the passive state, stable surface-alloys prepared by ion-beam-mixing (2 × 1016Ne+/cm2) have the best corrosion resistance. The mechanism by which palladium increased the corrosion resistance of titanium is based on the mixed-potential theory. © 1999 Canadian Institute of Mining and Metallurgy. Published by Elsevier Science Ltd. All rights reserved
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