Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media

Rotating bending fatigue tests have been performed to evaluate the corrosion fatigue performance and its influence factors of 7075-T7351 Al alloy in different media, namely air and a 5.0 wt % NaCl aqueous solution. All samples were coated by microarc oxidation (MAO) coating technology; some samples...

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Autores principales: Yang, Hui-Hui, Wang, Xi-Shu, Wang, Ya-Ming, Wang, Yan-Ling, Zhang, Zhi-Hao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5553426/
https://www.ncbi.nlm.nih.gov/pubmed/28772970
http://dx.doi.org/10.3390/ma10060609
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author Yang, Hui-Hui
Wang, Xi-Shu
Wang, Ya-Ming
Wang, Yan-Ling
Zhang, Zhi-Hao
author_facet Yang, Hui-Hui
Wang, Xi-Shu
Wang, Ya-Ming
Wang, Yan-Ling
Zhang, Zhi-Hao
author_sort Yang, Hui-Hui
collection PubMed
description Rotating bending fatigue tests have been performed to evaluate the corrosion fatigue performance and its influence factors of 7075-T7351 Al alloy in different media, namely air and a 5.0 wt % NaCl aqueous solution. All samples were coated by microarc oxidation (MAO) coating technology; some samples were followed by an epoxy resin pore-sealing treatment. Microscopic analyses of the surfaces and fracture cross-sections of samples were carried out. The results reveal that the sample with a MAO coating of 10 μm thickness and pore-sealing treatment by epoxy resin possesses optimal corrosion fatigue performance in the different media. The MAO coating with a pore-sealing treatment significantly improves the corrosion fatigue limit of 7075-T7351 Al alloy.
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spelling pubmed-55534262017-08-14 Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media Yang, Hui-Hui Wang, Xi-Shu Wang, Ya-Ming Wang, Yan-Ling Zhang, Zhi-Hao Materials (Basel) Article Rotating bending fatigue tests have been performed to evaluate the corrosion fatigue performance and its influence factors of 7075-T7351 Al alloy in different media, namely air and a 5.0 wt % NaCl aqueous solution. All samples were coated by microarc oxidation (MAO) coating technology; some samples were followed by an epoxy resin pore-sealing treatment. Microscopic analyses of the surfaces and fracture cross-sections of samples were carried out. The results reveal that the sample with a MAO coating of 10 μm thickness and pore-sealing treatment by epoxy resin possesses optimal corrosion fatigue performance in the different media. The MAO coating with a pore-sealing treatment significantly improves the corrosion fatigue limit of 7075-T7351 Al alloy. MDPI 2017-06-02 /pmc/articles/PMC5553426/ /pubmed/28772970 http://dx.doi.org/10.3390/ma10060609 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Hui-Hui
Wang, Xi-Shu
Wang, Ya-Ming
Wang, Yan-Ling
Zhang, Zhi-Hao
Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media
title Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media
title_full Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media
title_fullStr Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media
title_full_unstemmed Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media
title_short Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media
title_sort microarc oxidation coating combined with surface pore-sealing treatment enhances corrosion fatigue performance of 7075-t7351 al alloy in different media
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5553426/
https://www.ncbi.nlm.nih.gov/pubmed/28772970
http://dx.doi.org/10.3390/ma10060609
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