COMPARATIVE EVALUATION OF THE CORROSION RESISTANCE OF SOME CO-CR ALLOYS USED IN METAL-CERAMIC TECHNOLOGY

被引：0
|
作者：
Laurentiu, Dragus [1 ]
Mihaela, Buciumeanu [2 ]
Valentin, Amortila [2 ]
Monica, Comaneanu Raluca [3 ]
Elena, Ungureanu [4 ]
Violeta, Hancu [3 ]
机构：
[1] Dunarea de Jos Univ Galati, Fac Med & Pharm, Dept Dent, Galati, Romania
[2] Dunarea de Jos Univ Galati, Fac Engn, Dept Mech Engn, Galati, Romania
[3] Titu Maiorescu Univ Bucharest, Fac Dent, Dept Dent, Bucharest 60042, Romania
[4] Univ Politehn Bucuresti, Fac Mat Sci & Engn, Bucharest 60042, Romania
来源：
ROMANIAN JOURNAL OF ORAL REHABILITATION | 2022年 / 14卷 / 02期
关键词：
corrosion; dental alloys; artificial saliva; NI-CR; COMPLICATION RATES; SURFACE CONDITION; IN-VITRO; SURVIVAL; BEHAVIOR;
D O I：
暂无
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
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 degrees 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.
引用
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页码：140 / 152
页数：13
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