AN APPROACH FOR ESTIMATING ANODIC CURRENT DISTRIBUTIONS IN CREVICE CORROSION FROM POTENTIAL MEASUREMENTS

被引：36

作者：

NYSTROM, EA ^{[1
]}

LEE, JB ^{[1
]}

SAGUES, AA ^{[1
]}

PICKERING, HW ^{[1
]}

机构：

[1] PENN STATE UNIV,DEPT MAT SCI & ENGN,UNIV PK,PA 16802

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1994年 / 141卷 / 02期

关键词：

D O I：

10.1149/1.2054731

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Previous research has indicated a qualitative resemblance between the current distribution along actively corroding crevice walls and currents measured in corresponding anodic polarization plots. Using detailed measurements of the potential gradient along the crevice, a semiquantitative current distribution was calculated for the crevice wall using a double numerical differentiation method. The calculated current distribution was found to approximate that of the active loop measured in independent anodic polarization tests of the free metal surface.

引用

页码：358 / 361

页数：4

共 8 条

[1]

CHO K, 1992, ELECTROCHEMICAL SOC, P407

[2]

DALHQUIST G, 1974, NUMERICAL METHODS, P269

[3] THE SIGNIFICANCE OF THE LOCAL ELECTRODE POTENTIAL WITHIN PITS, CREVICES AND CRACKS [J].