ELECTROCHEMICAL-BEHAVIOR OF TITANIUM AND DENTAL ALLOYS IN ARTIFICIAL SALIVA

被引：58

作者：

ELAGLI, K ^{[1
]}

TRAISNEL, M ^{[1
]}

HILDEBRAND, HF ^{[1
]}

机构：

[1] ECOLE NATL SUPER CHIM LILLE,PHYSICOCHIM SOLIDES LAB,F-59652 VILLENEUVE DASCQ,FRANCE

来源：

ELECTROCHIMICA ACTA | 1993年 / 38卷 / 13期

关键词：

TITANIUM; CO-CR ALLOYS; AU ALLOY; DENTAL AMALGAM; CORROSION; ARTIFICIAL SALIVA;

D O I：

10.1016/0013-4686(93)85075-A

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical behaviour of titanium in artificial saliva was compared to those of a gold alloy, two Co-Cr alloys, and a non-gamma-2 dental amalgam. The potentiodynamic anodic polarization curve of Ti has an extremely weak passivation current density (= 1.5 muA cm-2) even at high polarization potentials. No breakdown potential has been observed, at least up to 1200 mV vs. sce. Repassivation of Ti is immediate, and its corrosion resistance is very high. The galvanic currents between Ti and Co-Cr alloys are extremely weak. Ti also shows a low sensitivity to crevice corrosion. When corrosion is uniform or localized, Ti has a nearly identical or better behaviour than Co-Cr alloys in artificial saliva.

引用

页码：1769 / 1774

页数：6