Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance

Abstract In the present work, the novel anodic oxide film (AOF) with self-sealing layer was successfully fabricated on 2024Al alloys by using an improved anodic oxidation method. The presence of the self-sealing layer on the porous layer of AOF was verified by Field emission scanning electron micro...

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Autores principales:	Yinghao Wu, Wenjie Zhao, Wurong Wang, Liping Wang, Qunji Xue
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9b721532349940c7bfdda85b89330b73
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spelling	oai:doaj.org-article:9b721532349940c7bfdda85b89330b732021-12-02T11:52:34ZNovel anodic oxide film with self-sealing layer showing excellent corrosion resistance10.1038/s41598-017-01549-y2045-2322https://doaj.org/article/9b721532349940c7bfdda85b89330b732017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01549-yhttps://doaj.org/toc/2045-2322Abstract In the present work, the novel anodic oxide film (AOF) with self-sealing layer was successfully fabricated on 2024Al alloys by using an improved anodic oxidation method. The presence of the self-sealing layer on the porous layer of AOF was verified by Field emission scanning electron micro scope. Confocal laser scanning microscope (CLSM) and X-ray photoelectron spectroscopy (XPS) were used to evaluate the morphology and the corrosion products of the AOF after salt spray test. The microhardness test showed that the self-sealing AOFs still displayed high hardness even after salt spray test. Electrochemical test and salt spray test results illustrated the excellent corrosion performance of the novel structured self-sealing anodic oxide film (SAOF) compared with common porous AOFs. The narrow diameter makes it difficult for chlorine ions ingress into the pores of SAOFs. The self-sealing layer played an important role in protecting the SAOF from corrosion.Yinghao WuWenjie ZhaoWurong WangLiping WangQunji XueNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yinghao Wu Wenjie Zhao Wurong Wang Liping Wang Qunji Xue Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
description	Abstract In the present work, the novel anodic oxide film (AOF) with self-sealing layer was successfully fabricated on 2024Al alloys by using an improved anodic oxidation method. The presence of the self-sealing layer on the porous layer of AOF was verified by Field emission scanning electron micro scope. Confocal laser scanning microscope (CLSM) and X-ray photoelectron spectroscopy (XPS) were used to evaluate the morphology and the corrosion products of the AOF after salt spray test. The microhardness test showed that the self-sealing AOFs still displayed high hardness even after salt spray test. Electrochemical test and salt spray test results illustrated the excellent corrosion performance of the novel structured self-sealing anodic oxide film (SAOF) compared with common porous AOFs. The narrow diameter makes it difficult for chlorine ions ingress into the pores of SAOFs. The self-sealing layer played an important role in protecting the SAOF from corrosion.
format	article
author	Yinghao Wu Wenjie Zhao Wurong Wang Liping Wang Qunji Xue
author_facet	Yinghao Wu Wenjie Zhao Wurong Wang Liping Wang Qunji Xue
author_sort	Yinghao Wu
title	Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
title_short	Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
title_full	Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
title_fullStr	Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
title_full_unstemmed	Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
title_sort	novel anodic oxide film with self-sealing layer showing excellent corrosion resistance
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9b721532349940c7bfdda85b89330b73
work_keys_str_mv	AT yinghaowu novelanodicoxidefilmwithselfsealinglayershowingexcellentcorrosionresistance AT wenjiezhao novelanodicoxidefilmwithselfsealinglayershowingexcellentcorrosionresistance AT wurongwang novelanodicoxidefilmwithselfsealinglayershowingexcellentcorrosionresistance AT lipingwang novelanodicoxidefilmwithselfsealinglayershowingexcellentcorrosionresistance AT qunjixue novelanodicoxidefilmwithselfsealinglayershowingexcellentcorrosionresistance
_version_	1718394999010230272

Novel anodic oxide film with self-sealing layer showing excellent corrosion resistance

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