The Microstructure and Wear Resistance of Microarc Oxidation Composite Coatings Containing Nano-Hexagonal Boron Nitride (HBN) Particles

Zhenwei Li; Shichun Di

doi:10.1007/s11665-017-2582-1

The Microstructure and Wear Resistance of Microarc Oxidation Composite Coatings Containing Nano-Hexagonal Boron Nitride (HBN) Particles

Zhenwei Li^*
, Shichun Di

^*Corresponding author for this work

School of Mechatronics Engineering, Harbin Institute of Technology

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

43 Scopus citations

Abstract

The composite coatings containing HBN were prepared on 2024 aluminum alloy by microarc oxidation in the electrolyte with nano-HBN particles. The microstructure, surface roughness, phase composition, hardness, adhesion strength and wear resistance of composite coatings were analyzed by SEM, EDS, laser confocal microscope, XRD, Vickers hardness tester, scratch test and ball-on-disc abrasive tests. The results revealed that composite coatings were mainly composed of γ-Al₂O₃, α-Al₂O₃, mullite and HBN. With increasing the content of HBN particles in the electrolyte, the size and number of the pores on the surface of composite coatings decreased significantly. Compared to the MAO coatings without HBN, the composite coatings exhibited better wear resistance, as demonstrated by the lower friction coefficient and the lower wear rate.

Original language	English
Pages (from-to)	1551-1561
Number of pages	11
Journal	Journal of Materials Engineering and Performance
Volume	26
Issue number	4
DOIs	https://doi.org/10.1007/s11665-017-2582-1
State	Published - 1 Apr 2017
Externally published	Yes

Keywords

2024 aluminum alloy
adhesion strength
composite ceramic coatings
microarc oxidation
nano-HBN particles
wear resistance

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10.1007/s11665-017-2582-1

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title = "The Microstructure and Wear Resistance of Microarc Oxidation Composite Coatings Containing Nano-Hexagonal Boron Nitride (HBN) Particles",

abstract = "The composite coatings containing HBN were prepared on 2024 aluminum alloy by microarc oxidation in the electrolyte with nano-HBN particles. The microstructure, surface roughness, phase composition, hardness, adhesion strength and wear resistance of composite coatings were analyzed by SEM, EDS, laser confocal microscope, XRD, Vickers hardness tester, scratch test and ball-on-disc abrasive tests. The results revealed that composite coatings were mainly composed of γ-Al2O3, α-Al2O3, mullite and HBN. With increasing the content of HBN particles in the electrolyte, the size and number of the pores on the surface of composite coatings decreased significantly. Compared to the MAO coatings without HBN, the composite coatings exhibited better wear resistance, as demonstrated by the lower friction coefficient and the lower wear rate.",

keywords = "2024 aluminum alloy, adhesion strength, composite ceramic coatings, microarc oxidation, nano-HBN particles, wear resistance",

author = "Zhenwei Li and Shichun Di",

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doi = "10.1007/s11665-017-2582-1",

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T1 - The Microstructure and Wear Resistance of Microarc Oxidation Composite Coatings Containing Nano-Hexagonal Boron Nitride (HBN) Particles

AU - Li, Zhenwei

AU - Di, Shichun

PY - 2017/4/1

Y1 - 2017/4/1

N2 - The composite coatings containing HBN were prepared on 2024 aluminum alloy by microarc oxidation in the electrolyte with nano-HBN particles. The microstructure, surface roughness, phase composition, hardness, adhesion strength and wear resistance of composite coatings were analyzed by SEM, EDS, laser confocal microscope, XRD, Vickers hardness tester, scratch test and ball-on-disc abrasive tests. The results revealed that composite coatings were mainly composed of γ-Al2O3, α-Al2O3, mullite and HBN. With increasing the content of HBN particles in the electrolyte, the size and number of the pores on the surface of composite coatings decreased significantly. Compared to the MAO coatings without HBN, the composite coatings exhibited better wear resistance, as demonstrated by the lower friction coefficient and the lower wear rate.

AB - The composite coatings containing HBN were prepared on 2024 aluminum alloy by microarc oxidation in the electrolyte with nano-HBN particles. The microstructure, surface roughness, phase composition, hardness, adhesion strength and wear resistance of composite coatings were analyzed by SEM, EDS, laser confocal microscope, XRD, Vickers hardness tester, scratch test and ball-on-disc abrasive tests. The results revealed that composite coatings were mainly composed of γ-Al2O3, α-Al2O3, mullite and HBN. With increasing the content of HBN particles in the electrolyte, the size and number of the pores on the surface of composite coatings decreased significantly. Compared to the MAO coatings without HBN, the composite coatings exhibited better wear resistance, as demonstrated by the lower friction coefficient and the lower wear rate.

KW - 2024 aluminum alloy

KW - adhesion strength

KW - composite ceramic coatings

KW - microarc oxidation

KW - nano-HBN particles

KW - wear resistance

UR - https://www.scopus.com/pages/publications/85014070461

U2 - 10.1007/s11665-017-2582-1

DO - 10.1007/s11665-017-2582-1

M3 - 文章

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JF - Journal of Materials Engineering and Performance

IS - 4

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The Microstructure and Wear Resistance of Microarc Oxidation Composite Coatings Containing Nano-Hexagonal Boron Nitride (HBN) Particles

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Keywords

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