Surface finishing effects on the corrosion behavior and electrochemical activity of 2098-T351 aluminum alloy investigated using scanning microelectrochemical techniques

被引：5

作者：

da Silva, Rejane Maria P. ^{[1
]}

Milagre, Mariana X. ^{[1
]}

Izquierdo, Javier ^{[2
,3
]}

Betancor-Abreu, Abenchara Maria ^{[2
]}

de Oliveira, Leandro A. ^{[4
]}

Araujo, Joao Victor de S. ^{[1
]}

Antunes, Renato A. ^{[4
]}

Souto, Ricardo M. ^{[2
,3
]}

Costa, Isolda ^{[1
]}

机构：

[1] CNEN, IPEN, Ave Prof Lineu Prestes 2242, Sao Paulo, Brazil

[2] Univ La Laguna, Dept Chem, POB 456, E-38200 Tenerife, Canary Islands, Spain

[3] Univ La Laguna, Inst Mat Sci & Nanotechnol, POB 456, E-38200 Tenerife, Canary Islands, Spain

[4] Univ Fed ABC UFABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas C, Ave Estados 5001, BR-09210580 Santo Andre, SP, Brazil

来源：

MATERIALS CHARACTERIZATION | 2022年 / 191卷

基金：

巴西圣保罗研究基金会;

关键词：

Al-cu-Li alloy; Surface preparation effects; Microelectrochemical techniques; Localized corrosion; NSDL; Electrochemical activity; LOCALIZED CORROSION; LITHIUM ALLOY; DEFORMED LAYERS; 1ST BREAKDOWN; AL-ALLOYS; MICROSTRUCTURE; EVOLUTION; COPPER; MICROSCOPY; IMPEDANCE;

D O I：

10.1016/j.matchar.2022.112130

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of surface finishing on the corrosion behavior and electrochemical activity of AA2098-T351 (Al-Cu-Li alloy) were investigated on the basis of the correlation between surface chemistry, microstructure and electrochemical activity. The alloy was evaluated in the as-received and polished conditions. The morphology of the two types of surfaces was investigated using confocal laser scanning microscopy (CLSM), optical microscopy and optical 3D profilometry. The surface chemistry was analyzed by X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDX). Scanning microelectrochemical techniques (namely, localized electrochemical impedance spectroscopy (LEIS), the scanning vibrating electrode technique (SVET) and scanning electrochemical microscopy (SECM) in potentiometric mode) were used to examine the electrochemical activity of the surfaces. The results showed that on the as-received surface, the near surface deformed layer (NSDL), which is composed of Mg-rich bands, influenced the corrosion activity of the alloy. Higher electrochemical activity and greater susceptibility to severe localized corrosion were related to the polished surface condition compared to the as-received one.

引用

页数：12

共 15 条

[1] Friction Stir welding effects on the corrosion resistance of the 2098-T351 alloy
Araujo, Joao Victor de S.
Milagre, Mariana X.
Calderon-Hernandez, Jose Wilmar
Morais, Nathanael W.
Costa, Isolda
MATERIALIA, 2025, 39
[2] The local electrochemical behavior of the AA2098-T351 and surface preparation effects investigated by scanning electrochemical microscopy
da Silva, Rejane Maria P.
Milagre, Mariana X.
de Oliveira, Leandro A.
Donatus, Uyime
Antunes, Renato A.
Costa, Isolda
SURFACE AND INTERFACE ANALYSIS, 2019, 51 (10) : 982 - 992
[3] Galvanic and asymmetry effects on the local electrochemical behavior of the 2098-T351 alloy welded by friction stir welding
Mariana X.Milagre
Uyime Donatus
Naga V.Mogili
Rejane Maria P.Silva
Bárbara Victória G.de Viveiros
Victor F.Pereira
Renato A.Antunes
Caruline S.C.Machado
Jo?o Victor S.Araujo
Isolda Costa
Journal of Materials Science & Technology, 2020, 45 (10) : 162 - 175
[4] Galvanic and asymmetry effects on the local electrochemical behavior of the 2098-T351 alloy welded by friction stir welding
Milagre, Mariana X.
Donatus, Uyime
Mogili, Naga, V
Silva, Rejane Maria P.
de Viveiros, Barbara Victoria G.
Pereira, Victor F.
Antunes, Renato A.
Machado, Caruline S. C.
Araujo, Joao Victor S.
Costa, Isolda
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 45 (45): : 162 - 175
[5] Development of an Al3+ ion-selective microelectrode for the potentiometric microelectrochemical monitoring of corrosion sites on 2098-T351 aluminum alloy surfaces
da Silva, Rejane Maria P.
Izquierdo, Javier
Milagre, Mariana X.
Antunes, Renato A.
Souto, Ricardo M.
Costa, Isolda
ELECTROCHIMICA ACTA, 2022, 415
[6] Use of Amperometric and Potentiometric Probes in Scanning Electrochemical Microscopy for the Spatially-Resolved Monitoring of Severe Localized Corrosion Sites on Aluminum Alloy 2098-T351
da Silva, Rejane M. P.
Izquierdo, Javier
Milagre, Mariana X.
Betancor-Abreu, Abenchara M.
Costa, Isolda
Souto, Ricardo M.
SENSORS, 2021, 21 (04) : 1 - 15
[7] Corrosion behaviour of the 2098-T351 Al-Cu-Li alloy after different surface treatments
Barboza, Wanessa das Gracas
Milagre, Mariana Xavier
Donatus, Uyime
Carvalho Machado, Caruline de Souza
Prada Ramirez, Oscar Mauricio
de Sousa Araujo, Joao Victor
Pereira da Silva, Rejane Maria
Costa, Isolda
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY, 2022, 57 (03) : 269 - 279
[8] On the local corrosion behavior of coupled welded zones of the 2098-T351 Al-Cu-Li alloy produced by Friction Stir Welding (FSW): An amperometric and potentiometric microelectrochemical investigation
da Silva, Rejane Maria P.
Izquierdo, Javier
Milagre, Mariana X.
Betancor-Abreu, Abenchara Maria
de Oliveira, Leandro A.
Antunes, Renato A.
Souto, Ricardo M.
Costa, Isolda
ELECTROCHIMICA ACTA, 2021, 373
[9] Localized corrosion behavior in aluminum-zinc alloy coatings investigated using the scanning reference electrode technique
McMurray, HN
CORROSION, 2001, 57 (04) : 313 - 322
[10] Study of surface corrosion on AA 2017-T4 aluminum alloy by using electrochemical parameters
Abreu, C. M.
Cabeza, M.
Feijoo, I.
SURFACE AND INTERFACE ANALYSIS, 2016, 48 (07) : 676 - 679

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