Effect of Reprocessing Treatment on the Corrosion of Co-Cr Alloy in Acid Media

被引:0
|
作者
Golgovici, Florentina [1 ]
Prodana, Mariana [1 ]
Popescu, Anca [2 ]
机构
[1] Univ Politehn Bucuresti, Dept Gen Chem, Bucharest 011061, Romania
[2] Univ Titu Maiorescu Bucharest, Fac Dent, Bucharest 031593, Romania
来源
REVISTA DE CHIMIE | 2015年 / 66卷 / 05期
关键词
corrosion; Co-Cr alloys; electrochemical technics; EIS; ICP-MS; SIMULATED PHYSIOLOGICAL SOLUTION; COCRMO ALLOY; ELECTROCHEMICAL-BEHAVIOR;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The aim of the paper is a comparison of corrosion behaviour of three Co-Cr commercial alloys in acid media before and after a reprocessing treatment which is a step in denture restorative pieces fabrication. The electrochemical tests as Tafel procedure and electrochemical impedance spectroscopy (EIS) are performed in a usual alimentary commercial environment with a pH 2.73 and the investigations are completed with inductively coupled plasma mass spectrometry (ICP-MS) determinations, in order to see the release of ions changes. Based on experimental data it is concluded that thermally reprocessing effect leads for all tree alloys to enhancement of corrosion rate and an important displacement in the resistance group at corrosion classification.
引用
收藏
页码:660 / 667
页数:8
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