Electrochemical corrosion behavior of novel Cu-containing antimicrobial austenitic and ferritic stainless steels in chloride media

被引：9

作者：

Oguzie, Emeka E. ^{[1
,3
]}

Li, Jibiao ^{[1
]}

Liu, Yongqian ^{[2
]}

Chen, Demin ^{[2
]}

Li, Ying ^{[1
]}

Yang, Ke ^{[2
]}

Wang, Fuhui ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110015, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Ctr Engn Mat, Shenyang 110016, Peoples R China

[3] Fed Univ Technol Owerri, Electrochem & Mat Sci Res Lab, Dept Chem, PMB 1526, Owerri, Nigeria

来源：

JOURNAL OF MATERIALS SCIENCE | 2010年 / 45卷 / 21期

关键词：

IMPEDANCE SPECTROSCOPY; ANTIBACTERIAL PROPERTIES; SULFURIC-ACID; COPPER IONS; RESISTANCE; MICROSTRUCTURE; INHIBITION; RELAXATION; COATINGS; IRON;

D O I：

10.1007/s10853-010-4669-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrochemical corrosion behavior of novel Cu-containing antibacterial austenitic and ferritic stainless steels in 0.05 mol/L NaCl solution has been investigated by dc polarization and ac impedance measurements and compared with that of the conventional stainless steels. Cu was found to particularly affect the kinetics of the anodic reaction. The corrosion performance of the austenite was greatly improved by Cu addition in the studied anodic potential range, whereas Cu effects on the ferrite showed remarkable sensitivity to the applied potential and improved corrosion resistance only in the low anodic potential range. Three-dimensional presentation of the variable-potential impedance data was employed in analyzing the electrochemical corrosion processes and revealed a close relationship between the impedance parameters and the applied potential. The trends of impedance results agree well with those obtained from potentiodynamic polarization measurements.

引用

页码：5902 / 5909

页数：8

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