A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3

A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3

A dense Cr2O3/Al2O3 composite coating was fabricated on 321L stainless steel by electrodepositing an Al2O3 layer on a Cr2O3 coating. The composition, structure, and properties of the obtained ceramic coating were investigated. The results showed that Al2O3 fully infiltrated the Cr2O3 coating and sig...

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Main Authors: Jiao Di, Wei Liu, Lihong Xue, Qilai Zhou, Youwei Yan
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Coatings
Subjects:
Cr2O3/Al2O3 composite coating
electrodeposition
bonding strength
corrosion resistance
deuterium permeation
Online Access:http://www.mdpi.com/2079-6412/9/1/14
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spelling doaj-3f91e9d437de44209b3f0bd548433a742020-11-25T02:00:59ZengMDPI AGCoatings2079-64122018-12-01911410.3390/coatings9010014coatings9010014A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3Jiao Di0Wei Liu1Lihong Xue2Qilai Zhou3Youwei Yan4State Key Laboratory of Materials Processing and Die and Mould Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Materials Processing and Die and Mould Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Materials Processing and Die and Mould Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaFaculty of Science, Shizuoka University, Shizuoka 422-8529, JapanState Key Laboratory of Materials Processing and Die and Mould Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaA dense Cr2O3/Al2O3 composite coating was fabricated on 321L stainless steel by electrodepositing an Al2O3 layer on a Cr2O3 coating. The composition, structure, and properties of the obtained ceramic coating were investigated. The results showed that Al2O3 fully infiltrated the Cr2O3 coating and significantly improved the compactness of the ceramic coating by filling in the pores and cracks between the Cr2O3 grains. The composite ceramic coating was heat-treated at 750 °C and exhibited a high microhardness of 219.4 HV500g, a bonding strength of 46.5 MPa, and excellent anti-corrosion and deuterium permeation suppression properties.http://www.mdpi.com/2079-6412/9/1/14Cr2O3/Al2O3 composite coatingelectrodepositionbonding strengthcorrosion resistancedeuterium permeation
collection DOAJ
language English
format Article
sources DOAJ
author Jiao Di
Wei Liu
Lihong Xue
Qilai Zhou
Youwei Yan
spellingShingle Jiao Di
Wei Liu
Lihong Xue
Qilai Zhou
Youwei Yan
A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3
Coatings
Cr2O3/Al2O3 composite coating
electrodeposition
bonding strength
corrosion resistance
deuterium permeation
author_facet Jiao Di
Wei Liu
Lihong Xue
Qilai Zhou
Youwei Yan
author_sort Jiao Di
title A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3
title_short A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3
title_full A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3
title_fullStr A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3
title_full_unstemmed A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3
title_sort dense cr2o3/al2o3 composite ceramic coating prepared by electrodeposition and sealing with al2o3
publisher MDPI AG
series Coatings
issn 2079-6412
publishDate 2018-12-01
description A dense Cr2O3/Al2O3 composite coating was fabricated on 321L stainless steel by electrodepositing an Al2O3 layer on a Cr2O3 coating. The composition, structure, and properties of the obtained ceramic coating were investigated. The results showed that Al2O3 fully infiltrated the Cr2O3 coating and significantly improved the compactness of the ceramic coating by filling in the pores and cracks between the Cr2O3 grains. The composite ceramic coating was heat-treated at 750 °C and exhibited a high microhardness of 219.4 HV500g, a bonding strength of 46.5 MPa, and excellent anti-corrosion and deuterium permeation suppression properties.
topic Cr2O3/Al2O3 composite coating
electrodeposition
bonding strength
corrosion resistance
deuterium permeation
url http://www.mdpi.com/2079-6412/9/1/14
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