On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin

On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin

The aim of this work was to study the corrosion process of new aluminium alloy AA2524-T3 (Solution Heat Treated and Cold Worked), which is a promising substitute of the base line AA2024-T3 for aircrafts fabrication, by global and localised techniques in sodium chloride medium (0.05 mol L-1 NaCl). The open circuit potential results revealed a stochastic evolution of pitting events and to the resulting variations in the ratio of passive/active areas and/or cathode/anode, which may be related to the presence of different types of intermetallics. The cyclicvoltammetry showed that the corrosion potential (Ecorr) and the pit nucleation potential (E pit) values are quite similar (approximately -0.525 V). The results of EIS show that the corrosion rate is quite stable, with no tendency to increase or decrease for longer immersion periods. The results of SVET were in agreement with the results obtained by EIS technique, showing strong anodic activity on the surface with no repassivation along the whole immersion time. Besides, corrosion process led to significant surface degradation after 24h.

Saved in:
Bibliographic Details
Main Authors: Moreto,Jéferson Aparecido, Rossino,Luciana Sgarbi, Bose Filho,Waldek Wladimir, Marino,Cláudia Eliana Bruno, Ferreira,Miguel da Conceição, Taryba,Maryna, Fernandes,João Carlos Salvador
Format: Digital revista
Language:English
Published: ABM, ABC, ABPol 2019
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200207
Tags: Add Tag
No Tags, Be the first to tag this record!
id oai:scielo:S1516-14392019000200207
record_format ojs
spelling oai:scielo:S1516-143920190002002072019-01-11On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage SkinMoreto,Jéferson AparecidoRossino,Luciana SgarbiBose Filho,Waldek WladimirMarino,Cláudia Eliana BrunoFerreira,Miguel da ConceiçãoTaryba,MarynaFernandes,João Carlos Salvador Galvanic coupling Intermetallics Pitting EIS SVET The aim of this work was to study the corrosion process of new aluminium alloy AA2524-T3 (Solution Heat Treated and Cold Worked), which is a promising substitute of the base line AA2024-T3 for aircrafts fabrication, by global and localised techniques in sodium chloride medium (0.05 mol L-1 NaCl). The open circuit potential results revealed a stochastic evolution of pitting events and to the resulting variations in the ratio of passive/active areas and/or cathode/anode, which may be related to the presence of different types of intermetallics. The cyclicvoltammetry showed that the corrosion potential (Ecorr) and the pit nucleation potential (E pit) values are quite similar (approximately -0.525 V). The results of EIS show that the corrosion rate is quite stable, with no tendency to increase or decrease for longer immersion periods. The results of SVET were in agreement with the results obtained by EIS technique, showing strong anodic activity on the surface with no repassivation along the whole immersion time. Besides, corrosion process led to significant surface degradation after 24h.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.22 n.2 20192019-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200207en10.1590/1980-5373-mr-2018-0280
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Moreto,Jéferson Aparecido
Rossino,Luciana Sgarbi
Bose Filho,Waldek Wladimir
Marino,Cláudia Eliana Bruno
Ferreira,Miguel da Conceição
Taryba,Maryna
Fernandes,João Carlos Salvador
spellingShingle Moreto,Jéferson Aparecido
Rossino,Luciana Sgarbi
Bose Filho,Waldek Wladimir
Marino,Cláudia Eliana Bruno
Ferreira,Miguel da Conceição
Taryba,Maryna
Fernandes,João Carlos Salvador
On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin
author_facet Moreto,Jéferson Aparecido
Rossino,Luciana Sgarbi
Bose Filho,Waldek Wladimir
Marino,Cláudia Eliana Bruno
Ferreira,Miguel da Conceição
Taryba,Maryna
Fernandes,João Carlos Salvador
author_sort Moreto,Jéferson Aparecido
title On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin
title_short On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin
title_full On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin
title_fullStr On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin
title_full_unstemmed On the Global and Localised Corrosion Behaviour of the AA2524-T3 Aluminium Alloy Used as Aircraft Fuselage Skin
title_sort on the global and localised corrosion behaviour of the aa2524-t3 aluminium alloy used as aircraft fuselage skin
description The aim of this work was to study the corrosion process of new aluminium alloy AA2524-T3 (Solution Heat Treated and Cold Worked), which is a promising substitute of the base line AA2024-T3 for aircrafts fabrication, by global and localised techniques in sodium chloride medium (0.05 mol L-1 NaCl). The open circuit potential results revealed a stochastic evolution of pitting events and to the resulting variations in the ratio of passive/active areas and/or cathode/anode, which may be related to the presence of different types of intermetallics. The cyclicvoltammetry showed that the corrosion potential (Ecorr) and the pit nucleation potential (E pit) values are quite similar (approximately -0.525 V). The results of EIS show that the corrosion rate is quite stable, with no tendency to increase or decrease for longer immersion periods. The results of SVET were in agreement with the results obtained by EIS technique, showing strong anodic activity on the surface with no repassivation along the whole immersion time. Besides, corrosion process led to significant surface degradation after 24h.
publisher ABM, ABC, ABPol
publishDate 2019
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000200207
work_keys_str_mv AT moretojefersonaparecido ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
AT rossinolucianasgarbi ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
AT bosefilhowaldekwladimir ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
AT marinoclaudiaelianabruno ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
AT ferreiramigueldaconceicao ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
AT tarybamaryna ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
AT fernandesjoaocarlossalvador ontheglobalandlocalisedcorrosionbehaviouroftheaa2524t3aluminiumalloyusedasaircraftfuselageskin
_version_ 1756420832176898048

Similar Items