Effect of anode pulse-width on the microstructure and wear resistance of microarc oxidation coatings

Zhen Wei Li; Shi Chun Di

doi:10.3390/met7070243

Effect of anode pulse-width on the microstructure and wear resistance of microarc oxidation coatings

Zhen Wei Li^*
, Shi Chun Di

^*Corresponding author for this work

School of Mechatronics Engineering, Harbin Institute of Technology

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

6 Scopus citations

Abstract

Microarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP) dispersion for preparing MAO self-lubricating composite coatings containing FEP. The effect of the anode pulse-width on the microstructure and wear resistance of the microarc oxidation coatings was investigated. The wear resistance of the microarc oxidation self-lubricating composite coatings was analyzed. The results revealed that the MAO self-lubricating composite coatings integrated the advantages of wear resistance of the MAO ceramic coatings and a low friction coefficient of FEP. Compared to the MAO coatings, the microarc oxidation self-lubricating composite coatings exhibited a lower friction coefficient and lower wear rates.

Original language	English
Article number	243
Journal	Metals
Volume	7
Issue number	7
DOIs	https://doi.org/10.3390/met7070243
State	Published - Jul 2017
Externally published	Yes

Keywords

2024-T4 aluminum alloys
Adhesion strength
Anode pulse-width
FEP
Microarc oxidation
Wear resistance

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10.3390/met7070243

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@article{9478425c25f84b7fad5d9cfe6a684fd3,

title = "Effect of anode pulse-width on the microstructure and wear resistance of microarc oxidation coatings",

abstract = "Microarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP) dispersion for preparing MAO self-lubricating composite coatings containing FEP. The effect of the anode pulse-width on the microstructure and wear resistance of the microarc oxidation coatings was investigated. The wear resistance of the microarc oxidation self-lubricating composite coatings was analyzed. The results revealed that the MAO self-lubricating composite coatings integrated the advantages of wear resistance of the MAO ceramic coatings and a low friction coefficient of FEP. Compared to the MAO coatings, the microarc oxidation self-lubricating composite coatings exhibited a lower friction coefficient and lower wear rates.",

keywords = "2024-T4 aluminum alloys, Adhesion strength, Anode pulse-width, FEP, Microarc oxidation, Wear resistance",

author = "Li, \{Zhen Wei\} and Di, \{Shi Chun\}",

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

year = "2017",

month = jul,

doi = "10.3390/met7070243",

language = "英语",

volume = "7",

journal = "Metals",

issn = "2075-4701",

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

number = "7",

}

TY - JOUR

T1 - Effect of anode pulse-width on the microstructure and wear resistance of microarc oxidation coatings

AU - Li, Zhen Wei

AU - Di, Shi Chun

PY - 2017/7

Y1 - 2017/7

N2 - Microarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP) dispersion for preparing MAO self-lubricating composite coatings containing FEP. The effect of the anode pulse-width on the microstructure and wear resistance of the microarc oxidation coatings was investigated. The wear resistance of the microarc oxidation self-lubricating composite coatings was analyzed. The results revealed that the MAO self-lubricating composite coatings integrated the advantages of wear resistance of the MAO ceramic coatings and a low friction coefficient of FEP. Compared to the MAO coatings, the microarc oxidation self-lubricating composite coatings exhibited a lower friction coefficient and lower wear rates.

AB - Microarc oxidation (MAO) coatings were prepared on 2024-T4 aluminum alloys using a pulsed bipolar power supply at different anode pulse-widths. After the MAO coatings were formed, the micropores and microcracks on the surface of the MAO coatings were filled with Fluorinated ethylene propylene (FEP) dispersion for preparing MAO self-lubricating composite coatings containing FEP. The effect of the anode pulse-width on the microstructure and wear resistance of the microarc oxidation coatings was investigated. The wear resistance of the microarc oxidation self-lubricating composite coatings was analyzed. The results revealed that the MAO self-lubricating composite coatings integrated the advantages of wear resistance of the MAO ceramic coatings and a low friction coefficient of FEP. Compared to the MAO coatings, the microarc oxidation self-lubricating composite coatings exhibited a lower friction coefficient and lower wear rates.

KW - 2024-T4 aluminum alloys

KW - Adhesion strength

KW - Anode pulse-width

KW - FEP

KW - Microarc oxidation

KW - Wear resistance

UR - https://www.scopus.com/pages/publications/85022331373

U2 - 10.3390/met7070243

DO - 10.3390/met7070243

M3 - 文章

AN - SCOPUS:85022331373

SN - 2075-4701

VL - 7

JO - Metals

JF - Metals

IS - 7

M1 - 243

ER -

Effect of anode pulse-width on the microstructure and wear resistance of microarc oxidation coatings

Abstract

Keywords

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