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Welding and galvanic coupling effects on the electrochemical activity of dissimilar AA2050 and AA7050 aluminum alloys welded by Friction Stir Welding (FSW). Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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da Silva RMP, Izquierdo J, Milagre MX, Araujo JVDS, Antunes RA, Souto RM, Costa I. Electrochemical characterization of alloy segregation in the near-surface deformed layer of welded zones of an Al−Cu−Li alloy using scanning electrochemical microscopy. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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da Silva RMP, Izquierdo J, Milagre MX, Betancor-Abreu AM, de Oliveira LA, Antunes RA, Souto RM, Costa I. 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. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.137910] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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da Silva RMP, Izquierdo J, Milagre MX, Betancor-Abreu AM, Costa I, Souto RM. 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. SENSORS 2021; 21:s21041132. [PMID: 33561949 PMCID: PMC7915144 DOI: 10.3390/s21041132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 11/23/2022]
Abstract
Amperometric and potentiometric probes were employed for the detection and characterization of reactive sites on the 2098-T351 Al-alloy (AA2098-T351) using scanning electrochemical microscopy (SECM). Firstly, the probe of concept was performed on a model Mg-Al galvanic pair system using SECM in the amperometric and potentiometric operation modes, in order to address the responsiveness of the probes for the characterization of this galvanic pair system. Next, these sensing probes were employed to characterize the 2098-T351 alloy surface immersed in a saline aqueous solution at ambient temperature. The distribution of reactive sites and the local pH changes associated with severe localized corrosion (SLC) on the alloy surface were imaged and subsequently studied. Higher hydrogen evolution, lower oxygen depletion and acidification occurred at the SLC sites developed on the 2098-T351 Al-alloy.
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Affiliation(s)
- Rejane M. P. da Silva
- Instituto de Pesquisas Energéticas e Nucleares—IPEN, CNEN—Av. Prof. Lineu Prestes, 2242 São Paulo, Brazil; (M.X.M.); (I.C.)
- Departamento de Química, Universidad de La Laguna, P.O. Box 456, E-38200 La Laguna (Tenerife), Canary Islands, Spain; (J.I.); (A.M.B.-A.)
- Correspondence: (R.M.P.d.S.); (R.M.S.)
| | - Javier Izquierdo
- Departamento de Química, Universidad de La Laguna, P.O. Box 456, E-38200 La Laguna (Tenerife), Canary Islands, Spain; (J.I.); (A.M.B.-A.)
- Instituto de Materiales y Nanotecnología, Universidad de La Laguna, P.O. Box 456, E-38200 La Laguna (Tenerife), Canary Islands, Spain
| | - Mariana X. Milagre
- Instituto de Pesquisas Energéticas e Nucleares—IPEN, CNEN—Av. Prof. Lineu Prestes, 2242 São Paulo, Brazil; (M.X.M.); (I.C.)
| | - Abenchara M. Betancor-Abreu
- Departamento de Química, Universidad de La Laguna, P.O. Box 456, E-38200 La Laguna (Tenerife), Canary Islands, Spain; (J.I.); (A.M.B.-A.)
| | - Isolda Costa
- Instituto de Pesquisas Energéticas e Nucleares—IPEN, CNEN—Av. Prof. Lineu Prestes, 2242 São Paulo, Brazil; (M.X.M.); (I.C.)
| | - Ricardo M. Souto
- Departamento de Química, Universidad de La Laguna, P.O. Box 456, E-38200 La Laguna (Tenerife), Canary Islands, Spain; (J.I.); (A.M.B.-A.)
- Instituto de Materiales y Nanotecnología, Universidad de La Laguna, P.O. Box 456, E-38200 La Laguna (Tenerife), Canary Islands, Spain
- Correspondence: (R.M.P.d.S.); (R.M.S.)
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Effect of unequal levels of deformation and fragmentation on the electrochemical response of friction stir welded AA2024-T3 alloy. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.137] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Influence of the crystallographic orientation on the electrochemical reactivity measured by Scanning Electrochemical Microscopy on nickel-based alloy 600. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Silva RMP, Milagre MX, Oliveira LA, Donatus U, Antunes RA, Costa I. The local electrochemical behavior of the AA2098‐T351 and surface preparation effects investigated by scanning electrochemical microscopy. SURF INTERFACE ANAL 2019. [DOI: 10.1002/sia.6682] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rejane Maria P. Silva
- IPEN/CNEN, Centro de Ciência Tecnologia e Materiais (CCTM)Instituto de Pesquisas Energéticas e Nucleares São Paulo Brazil
| | - Mariana X. Milagre
- IPEN/CNEN, Centro de Ciência Tecnologia e Materiais (CCTM)Instituto de Pesquisas Energéticas e Nucleares São Paulo Brazil
| | - Leandro A. Oliveira
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS)Universidade Federal do ABC‐UFABC Santo André Brazil
| | - Uyime Donatus
- IPEN/CNEN, Centro de Ciência Tecnologia e Materiais (CCTM)Instituto de Pesquisas Energéticas e Nucleares São Paulo Brazil
| | - Renato A. Antunes
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS)Universidade Federal do ABC‐UFABC Santo André Brazil
| | - Isolda Costa
- IPEN/CNEN, Centro de Ciência Tecnologia e Materiais (CCTM)Instituto de Pesquisas Energéticas e Nucleares São Paulo Brazil
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Polcari D, Dauphin-Ducharme P, Mauzeroll J. Scanning Electrochemical Microscopy: A Comprehensive Review of Experimental Parameters from 1989 to 2015. Chem Rev 2016; 116:13234-13278. [PMID: 27736057 DOI: 10.1021/acs.chemrev.6b00067] [Citation(s) in RCA: 224] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- David Polcari
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec Canada, H3A 0B8
| | - Philippe Dauphin-Ducharme
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec Canada, H3A 0B8
| | - Janine Mauzeroll
- Department
of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec Canada, H3A 0B8
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