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

页码：140 / 152

页数：13

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