IMPACT OF STRAIN IN DRAWING PROCESS AND SURFACE MODIFICATION ON RESISTANCE TO ELECTROCHEMICAL CORROSION OF WIRES USED IN DENTISTRY

被引：0
|
作者：
Przondziono, J. [1 ]
Hadasik, E. [1 ]
Walke, W. [2 ]
Szala, J. [1 ]
机构：
[1] Silesian Tech Univ, Fac Mat Sci & Met, PL-40038 Katowice, Poland
[2] Silesian Tech Univ, Fac Biomed Engn, Zabrze, Poland
来源：
ARCHIVES OF METALLURGY AND MATERIALS | 2015年 / 60卷 / 03期
关键词：
wires made of stainless steel X10CrNi 18-8; electrochemical corrosion in artificial saliva solution; anodic polarisation curves; EIS; SEM;
D O I：
10.1515/amm-2015-0318
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The study presents the results of research into the impact of strain in cold drawing and surface modification treatment on corrosion properties of wires made of X10CrNi 18-8 steel used in maxillofacial surgery. Scanning microscopy enabled to make images of the surface of wires after drawing process as well as after surface modification treatment. Resistance to electrochemical corrosion was evaluated on the ground of registered anodic polarisation curves in artificial saliva. In order to evaluate physical and chemical properties of the surface, electrochemical impedance spectroscopy was performed. Test results show deterioration of corrosion properties of wires along with strain taking place in drawing process. It was proved that electrochemical polishing and chemical passivation caused sudden increase of resistance of wires made of stainless steel to pitting corrosion in artificial saliva.
引用
收藏
页码：1865 / 1869
页数：5
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