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

Hui Hui Yang; Xi Shu Wang; Ya Ming Wang; Yan Ling Wang; Zhi Hao Zhang

doi:10.3390/MA10060609

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

Hui Hui Yang
, Xi Shu Wang^*
, Ya Ming Wang
, Yan Ling Wang
, Zhi Hao Zhang

^*Corresponding author for this work

School of Materials Science and Engineering

Tsinghua University

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

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.

Original language	English
Article number	609
Journal	Materials
Volume	10
Issue number	6
DOIs	https://doi.org/10.3390/MA10060609
State	Published - Jun 2017

Keywords

Al alloy
corrosion fatigue
microarc oxidation coating
microscopic analysis
pore-sealing treatment

Access to Document

10.3390/MA10060609

Cite this

@article{6bd20b8ca7894a9d80280d4c16e38043,

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

abstract = "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.",

keywords = "Al alloy, corrosion fatigue, microarc oxidation coating, microscopic analysis, pore-sealing treatment",

author = "Yang, \{Hui Hui\} and Wang, \{Xi Shu\} and Wang, \{Ya Ming\} and Wang, \{Yan Ling\} and Zhang, \{Zhi Hao\}",

note = "Publisher Copyright: {\textcopyright} 2017 by the authors.",

year = "2017",

month = jun,

doi = "10.3390/MA10060609",

language = "英语",

volume = "10",

journal = "Materials",

issn = "1996-1944",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "6",

}

TY - JOUR

T1 - Microarc Oxidation Coating Combined with Surface Pore-Sealing Treatment Enhances Corrosion Fatigue Performance of 7075-T7351 Al Alloy in Different Media

AU - Yang, Hui Hui

AU - Wang, Xi Shu

AU - Wang, Ya Ming

AU - Wang, Yan Ling

AU - Zhang, Zhi Hao

PY - 2017/6

Y1 - 2017/6

N2 - 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.

AB - 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.

KW - Al alloy

KW - corrosion fatigue

KW - microarc oxidation coating

KW - microscopic analysis

KW - pore-sealing treatment

UR - https://www.scopus.com/pages/publications/85041621467

U2 - 10.3390/MA10060609

DO - 10.3390/MA10060609

M3 - 文章

AN - SCOPUS:85041621467

SN - 1996-1944

VL - 10

JO - Materials

JF - Materials

IS - 6

M1 - 609

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this