Introducing a low-cost tool for 3D characterization of pitting corrosion in stainless steel

被引：7

作者：

Coelho, Dyovani ^{[1
]}

Cuadros Linares, Oscar A. ^{[2
]}

Oliveira, Aloadir L. S. ^{[1
]}

Andrade, Marcos A. S. Jr Jr ^{[1
]}

Mascaro, Lucia H. ^{[1
]}

Batista Neto, Joao E. S. ^{[2
]}

Bruno, Odemir M. ^{[2
]}

Pereira, Ernesto C. ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Rodovia Washington Luis,Km 235 SP-310, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Sao Paulo, Av Trab Sao Carlense,400 Parque Arnold Schimidt, BR-13566590 Sao Carlos, SP, Brazil

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2020年 / 24卷 / 08期

基金：

巴西圣保罗研究基金会;

关键词：

Pitting corrosion; 3D reconstruction; Three-dimensional corrosion analysis; Stainless steel; AISI; 1040; STEEL; IN-SITU; ELECTROCHEMICAL NOISE; ANODIC-DISSOLUTION; TEMPORAL SERIES; 304-STAINLESS-STEEL; LAYER; POLARIZATION; PASSIVATION;

D O I：

10.1007/s10008-020-04586-2

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Herein, we propose an approach to three-dimensional (3D) reconstruction of corroded samples to have access to information about the shape, diameter, volume, depth, and spatial distribution of pits. For this purpose, a 304 stainless steel sample, after exposure to controlled corrosion conditions, was submitted to a sequence of polishing, surface image acquisition, and sample thickness measurement. This allows the 3D reconstruction of the sample using computational tomography. The analyses of the two-dimensional and the reconstructed three-dimensional images made it possible to evaluate all the geometric parameters of the pits as well as to compare these data with the electrochemical measurements recorded during the corrosion process.

引用

页码：1909 / 1919

页数：11

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