COMPARATIVE EVALUATION OF THE CORROSION RESISTANCE OF SOME CO-CR ALLOYS USED IN METAL-CERAMIC TECHNOLOGY
Co-Cr alloys are still used in metal-ceramic technology on the large scale. The purpose of this study was to provide a comparative analysis of the corrosion resistance by the polarization resistance technique of two Co-Cr-based alloys (codified Co-Cr- P and Co-Cr-PW) produced by the same manufacture...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Romanian Society of Oral Rehabilitation
2022-06-01
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| Series: | Romanian Journal of Oral Rehabilitation |
| Subjects: | |
| Online Access: | https://www.rjor.ro/comparative-evaluation-of-the-corrosion-resistance-of-some-co-cr-alloys-used-in-metal-ceramic-technology/ |
| Summary: | Co-Cr alloys are still used in metal-ceramic technology on the large scale. The purpose of this study was to provide a comparative analysis of the corrosion resistance by the polarization resistance technique of two Co-Cr-based alloys (codified Co-Cr- P and Co-Cr-PW) produced by the same manufacturer, which have a minor variation in chemical composition. Corrosion tests were performed at a temperature of 37 ± 0.5° C in a bath with heating and recirculation, in artificial saliva (SA) Carter Brugirard at pH = 7.58. Both tested alloys showed an increased corrosion resistance when immersed in artificial saliva, proving a good corrosion resistance and therefore a good biocompatibility. The Co-Cr-P test showed superior electrochemical values and, implicitly, higher corrosion resistance. |
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| ISSN: | 2066-7000 2601-4661 |