The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory

Electrical connection of dissimilar metals will lead to galvanic corrosion. Therefore, overall surface treatment is necessary for the protection of dissimilar metal welded parts. However, serious unbalanced reactions may occur during overall surface treatment, which makes it difficult to prepare int...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Yanfei, Song, Xiaocun, Zhou, Jixue, Liu, Hongtao, Yang, Yuansheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793561/
https://www.ncbi.nlm.nih.gov/pubmed/29301306
http://dx.doi.org/10.3390/ma11010063
_version_ 1783296980545437696
author Chen, Yanfei
Song, Xiaocun
Zhou, Jixue
Liu, Hongtao
Yang, Yuansheng
author_facet Chen, Yanfei
Song, Xiaocun
Zhou, Jixue
Liu, Hongtao
Yang, Yuansheng
author_sort Chen, Yanfei
collection PubMed
description Electrical connection of dissimilar metals will lead to galvanic corrosion. Therefore, overall surface treatment is necessary for the protection of dissimilar metal welded parts. However, serious unbalanced reactions may occur during overall surface treatment, which makes it difficult to prepare integral coating. In this paper, an overall ceramic coating was fabricated by plasma electrolytic oxidation to wrap the 6061–7075 welded part integrally. Moreover, the growth mechanism of the coating on different areas of the welded part was studied based on the dielectric breakdown theory. The reaction sequence of each area during the treatment was verified through specially designed dielectric breakdown tests. The results showed that the high impedance overall of ceramic coating can inhibit the galvanic corrosion of the 6061–7075 welded part effectively.
format Online
Article
Text
id pubmed-5793561
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-57935612018-02-07 The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory Chen, Yanfei Song, Xiaocun Zhou, Jixue Liu, Hongtao Yang, Yuansheng Materials (Basel) Article Electrical connection of dissimilar metals will lead to galvanic corrosion. Therefore, overall surface treatment is necessary for the protection of dissimilar metal welded parts. However, serious unbalanced reactions may occur during overall surface treatment, which makes it difficult to prepare integral coating. In this paper, an overall ceramic coating was fabricated by plasma electrolytic oxidation to wrap the 6061–7075 welded part integrally. Moreover, the growth mechanism of the coating on different areas of the welded part was studied based on the dielectric breakdown theory. The reaction sequence of each area during the treatment was verified through specially designed dielectric breakdown tests. The results showed that the high impedance overall of ceramic coating can inhibit the galvanic corrosion of the 6061–7075 welded part effectively. MDPI 2018-01-02 /pmc/articles/PMC5793561/ /pubmed/29301306 http://dx.doi.org/10.3390/ma11010063 Text en © 2018 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
Chen, Yanfei
Song, Xiaocun
Zhou, Jixue
Liu, Hongtao
Yang, Yuansheng
The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
title The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
title_full The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
title_fullStr The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
title_full_unstemmed The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
title_short The Study on the Overall Plasma Electrolytic Oxidation for 6061–7075 Dissimilar Aluminum Alloy Welded Parts Based on the Dielectric Breakdown Theory
title_sort study on the overall plasma electrolytic oxidation for 6061–7075 dissimilar aluminum alloy welded parts based on the dielectric breakdown theory
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5793561/
https://www.ncbi.nlm.nih.gov/pubmed/29301306
http://dx.doi.org/10.3390/ma11010063
work_keys_str_mv AT chenyanfei thestudyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT songxiaocun thestudyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT zhoujixue thestudyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT liuhongtao thestudyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT yangyuansheng thestudyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT chenyanfei studyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT songxiaocun studyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT zhoujixue studyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT liuhongtao studyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory
AT yangyuansheng studyontheoverallplasmaelectrolyticoxidationfor60617075dissimilaraluminumalloyweldedpartsbasedonthedielectricbreakdowntheory

Ejemplares similares