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Corrosion resistance of precious metals for biomedical applications

S.J. Megremis,    American Dental Association, USA

Abstract:

The corrosion resistance of precious metals for biomedical applications is examined. The basic principles of thermodynamics are used to explain whether or not corrosion is energetically feasible under specific electrochemical conditions. When corrosion is energetically favorable, the rate of corrosion is governed by electrochemical reaction kinetics, which is also considered. Furthermore, test methods that are applicable to the evaluation of precious metals for biomedical applications, including various standard test methods, are described along with test methods to evaluate resistance to tarnish. Finally, specific ...

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