Effect of unequal levels of deformation and fragmentation on the electrochemical response of friction stir welded AA2024-T3 alloy
| Autor: | Hercílio Gomes de Melo, Fernanda Martins Queiroz, Mikhail L. Zheludkevich, Oscar Mauricio Prada Ramirez, Barbara Victoria Gonçalves de Viveiros, Vincent Vivier, Sviatlana V. Lamaka, Uyime Donatus, Isolda Costa, Mohammad Masoumi, João Victor de Sousa Araujo |
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| Přispěvatelé: | Departamento de Engenharia Metalurgica e de Materiais (EPUSP/PMT), Escola Politecnica da Universidade de Sao Paulo [Sao Paulo], Instituto de Pesquisas Energéticas e Nucleares [São Paulo] (IPEN/CNEN-SP), Comissão National de Energia Nuclear (CNEN)-Universidade de São Paulo (USP), Institute of Materials Research [Geesthacht], Helmholtz-Zentrum Geesthacht (GKSS), Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas, Universidade Federal do ABC (UFABC), Laboratoire Interfaces et Systèmes Electrochimiques (LISE), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Friction stir welding General Chemical Engineering Intermetallic 02 engineering and technology Welding Deformation (meteorology) 010402 general chemistry 01 natural sciences Clustering law.invention Corrosion law Local electrochemical techniques Electrochemistry [CHIM]Chemical Sciences Friction welding Composite material ddc:620.11 021001 nanoscience & nanotechnology Microstructure 0104 chemical sciences Localized corrosion 0210 nano-technology Electron backscatter diffraction |
| Zdroj: | Martins Queiroz, F.; Donatus, U.; Prada Ramirez, O.M.; de Sousa Araujo, J.V.; Goncalves de Viveiros, B.V.; Lamaka, S.; Zheludkevich, M.; Masoumi, M.; Vivier, V.; Costa, I.; Gomes de Melo, H.: Effect of unequal levels of deformation and fragmentation on the electrochemical response of friction stir welded AA2024-T3 alloy. In: Electrochimica Acta. Vol. 313 (2019) 271-281. (DOI: /10.1016/j.electacta.2019.04.137) Electrochimica Acta Electrochimica Acta, Elsevier, 2019, 313, pp.271-281. ⟨10.1016/j.electacta.2019.04.137⟩ |
| ISSN: | 0013-4686 |
| Popis: | International audience; The effect of unequal levels of deformation and fragmentation on the electrochemical response of friction stir welded AA2024-T3 has been investigated using electron backscatter diffraction, scanning electron microscopy, global and localized electrochemical techniques. The friction stir welding process introduced unequal distribution and fragmentation of coarse intermetallic particles, such that more clusters of these particles were present in the thermomechanically affected zone of the weld. This resulted in a higher susceptibility to severe localized corrosion in this region when compared with the others. Results from electrochemical measurements using a microcell could not be clearly correlated with the corrosion behaviour because no significant differences were observed using these techniques. On the other hand, LEIS and SVET results were in agreement and correlated with the corrosion evolution at the surfaces of the tested samples. |
| Databáze: | OpenAIRE |
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