Resistance to localized corrosion of passive films on a duplex stainless steel

被引：31

作者：

Souto, RM ^{[1
]}

Rosca, ICM ^{[1
]}

González, S ^{[1
]}

机构：

[1] Univ La Laguna, Dept Phys Chem, E-38205 Tenerife, Spain

来源：

CORROSION | 2001年 / 57卷 / 04期

关键词：

duplex stainless steel; electrochemical testing; electrolyte solutions; localized corrosion; passive films; sodium chloride;

D O I：

10.5006/1.3290353

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The passivation and the resistance to pitting corrosion of a 21%Cr-7%Ni-2%Mo-2%Mn-1%Cu duplex stainless steel in neutral and alkaline buffered solutions, with and without chloride tons, was studied using electrochemical techniques. Results are explained through changes in the structure and composition of the passive layer during the anodization process, The presence of sodium chloride (NaCl) enhanced metal electrodissolution through the passive layer, this effect being more pronounced at either lower pH values or higher chloride concentrations.

引用

页码：300 / 306

页数：7

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