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Corrosion-stable nickel- and cobalt-based alloys for dental applications |
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| Authors: | Elke Rahm Dagmar Kunzmann Helke Döring Rudolf Holze |
| Affiliation: | Materials Analysis Station, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba-shi, Ibaraki, Japan Harima Office, National Institute for Materials Science, BL15XU, Spring-8, Kohto 1-1-1, Sayo-cho, 679-5148, Sayo-gun, Hyogo, Japan Department of Applied Chemistry, Okayama University, Tsushima-naka 3-1-1, 700-8530, Okayama, Japan The Institute for Chemical Research, Kyoto University, Gokashyo, 611-0011, Uji, Kyoto, Japan Hyogo Prefectural Institute of Industrial Research 3-1-12, Yukihira-cho, Suma-ku, 654-0037, Kobe, Japan |
| Abstract: | In a comparative study the in vitro corrosion behavior of a selection of nickel- and cobalt-based alloys for application in dentistry containing no noble metals was studied with slow scan cyclic voltammetry. The obtained breakthrough potentials, the repassivation behavior and further typical features of the cyclic voltamograms are correlated with the chemical composition as measured with electron beam microanalysis. Surface inhomogenities detected with the latter method are discussed with respect to the electrochemical behavior. For all alloys stabilities in terms of breakthrough potential superior to previously reported data for nickel-base alloys are found. |
| Keywords: | : Dental alloys corrosion in vitro study. |
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