Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging

Abstract Three-dimensional (3D) time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging is a promising tool in the analysis of surface modifications of alloy matrix and intermetallic particles induced by localized corrosion due to its good spatial resolution and very high sensitivity to ch...

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Autores principales:	Meicheng Li, Antoine Seyeux, Frédéric Wiame, Philippe Marcus, Jolanta Światowska
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/0f6e0f75e9e34089b363313240b9224a
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spelling	oai:doaj.org-article:0f6e0f75e9e34089b363313240b9224a2021-12-02T15:45:15ZLocalized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging10.1038/s41529-021-00170-92397-2106https://doaj.org/article/0f6e0f75e9e34089b363313240b9224a2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41529-021-00170-9https://doaj.org/toc/2397-2106Abstract Three-dimensional (3D) time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging is a promising tool in the analysis of surface modifications of alloy matrix and intermetallic particles induced by localized corrosion due to its good spatial resolution and very high sensitivity to chemical identification especially involving light mass elements like Li. In this paper, ToF-SIMS 3D chemical mapping combined with scanning electron microscopy was performed to study the localized corrosion of Al-Cu-Li alloy (AA2050-T8) in a region around an Al-Cu-Fe-Mn intermetallic particles (IMPs) in 0. 1 M NaCl solution. Initiation of corrosion was locally observed on the IMPs and between IMPs and matrix substrate. Moreover, a modified oxide/hydroxide layer was observed over IMPs compared to the matrix. This new corrosion layer was enriched with chlorides and Cu hydroxides. ToF-SIMS 3D imaging revealed that Li was present over the alloy matrix, while no Li was present over the IMPs in regions where localized corrosion occurred.Meicheng LiAntoine SeyeuxFrédéric WiamePhilippe MarcusJolanta ŚwiatowskaNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ENnpj Materials Degradation, Vol 5, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Meicheng Li Antoine Seyeux Frédéric Wiame Philippe Marcus Jolanta Światowska Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging
description	Abstract Three-dimensional (3D) time-of-flight secondary ion mass spectrometry (ToF-SIMS) imaging is a promising tool in the analysis of surface modifications of alloy matrix and intermetallic particles induced by localized corrosion due to its good spatial resolution and very high sensitivity to chemical identification especially involving light mass elements like Li. In this paper, ToF-SIMS 3D chemical mapping combined with scanning electron microscopy was performed to study the localized corrosion of Al-Cu-Li alloy (AA2050-T8) in a region around an Al-Cu-Fe-Mn intermetallic particles (IMPs) in 0. 1 M NaCl solution. Initiation of corrosion was locally observed on the IMPs and between IMPs and matrix substrate. Moreover, a modified oxide/hydroxide layer was observed over IMPs compared to the matrix. This new corrosion layer was enriched with chlorides and Cu hydroxides. ToF-SIMS 3D imaging revealed that Li was present over the alloy matrix, while no Li was present over the IMPs in regions where localized corrosion occurred.
format	article
author	Meicheng Li Antoine Seyeux Frédéric Wiame Philippe Marcus Jolanta Światowska
author_facet	Meicheng Li Antoine Seyeux Frédéric Wiame Philippe Marcus Jolanta Światowska
author_sort	Meicheng Li
title	Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging
title_short	Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging
title_full	Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging
title_fullStr	Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging
title_full_unstemmed	Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging
title_sort	localized corrosion induced surface modifications of al-cu-li alloy studied by tof-sims 3d imaging
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0f6e0f75e9e34089b363313240b9224a
work_keys_str_mv	AT meichengli localizedcorrosioninducedsurfacemodificationsofalculialloystudiedbytofsims3dimaging AT antoineseyeux localizedcorrosioninducedsurfacemodificationsofalculialloystudiedbytofsims3dimaging AT fredericwiame localizedcorrosioninducedsurfacemodificationsofalculialloystudiedbytofsims3dimaging AT philippemarcus localizedcorrosioninducedsurfacemodificationsofalculialloystudiedbytofsims3dimaging AT jolantaswiatowska localizedcorrosioninducedsurfacemodificationsofalculialloystudiedbytofsims3dimaging
_version_	1718385734240436224

Localized corrosion induced surface modifications of Al-Cu-Li alloy studied by ToF-SIMS 3D imaging

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