Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology

Junqiang Sun; Changxia Liu; Federico Venturi; Acacio Rincon Romero; Tanvir Hussain

doi:10.1177/02670836231223800

Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology

Junqiang Sun
, Changxia Liu^*
, Federico Venturi
, Acacio Rincon Romero
, Tanvir Hussain

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

This work aims to provide a method for improving the tribological properties of WC/Co substrates. Laser surface texturing technology was employed to fabricate micro-grooves on the substrate surfaces. Suspension high velocity oxy fuel thermal spraying technique was used to deposit 99 wt-% alumina + 1 wt-% graphene nanoplatelets (GNPs) coating on the substrate surface with micro-grooves. Characterisations such as micromorphology, composition analysis and tribological performance were examined. Results showed that the morphology of the laser prepared micro-groove consisted of two hills and one valley. The grid-textured samples sprayed with alumina/GNPs coating showed the lowest coefficient of friction and wear rate, which was benefited from the larger texture density and the friction reduction of GNPs lubrication film.

Original language	English
Pages (from-to)	782-798
Number of pages	17
Journal	Materials Science and Technology
Volume	40
Issue number	10
DOIs	https://doi.org/10.1177/02670836231223800
Publication status	Published - Jul 2024
Externally published	Yes

Keywords

SHVOF
WC/Co
graphene nanoplatelets
micro-texture
tribological behaviour

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10.1177/02670836231223800

Cite this

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title = "Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology",

abstract = "This work aims to provide a method for improving the tribological properties of WC/Co substrates. Laser surface texturing technology was employed to fabricate micro-grooves on the substrate surfaces. Suspension high velocity oxy fuel thermal spraying technique was used to deposit 99 wt-\% alumina + 1 wt-\% graphene nanoplatelets (GNPs) coating on the substrate surface with micro-grooves. Characterisations such as micromorphology, composition analysis and tribological performance were examined. Results showed that the morphology of the laser prepared micro-groove consisted of two hills and one valley. The grid-textured samples sprayed with alumina/GNPs coating showed the lowest coefficient of friction and wear rate, which was benefited from the larger texture density and the friction reduction of GNPs lubrication film.",

keywords = "SHVOF, WC/Co, graphene nanoplatelets, micro-texture, tribological behaviour",

author = "Junqiang Sun and Changxia Liu and Federico Venturi and Romero, \{Acacio Rincon\} and Tanvir Hussain",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = jul,

doi = "10.1177/02670836231223800",

language = "English",

volume = "40",

pages = "782--798",

journal = "Materials Science and Technology",

issn = "0267-0836",

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number = "10",

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TY - JOUR

T1 - Alumina/GNPs coating on textured WC/Co substrate

T2 - microstructure and tribology

AU - Sun, Junqiang

AU - Liu, Changxia

AU - Venturi, Federico

AU - Romero, Acacio Rincon

AU - Hussain, Tanvir

N1 - Publisher Copyright: © The Author(s) 2024.

PY - 2024/7

Y1 - 2024/7

N2 - This work aims to provide a method for improving the tribological properties of WC/Co substrates. Laser surface texturing technology was employed to fabricate micro-grooves on the substrate surfaces. Suspension high velocity oxy fuel thermal spraying technique was used to deposit 99 wt-% alumina + 1 wt-% graphene nanoplatelets (GNPs) coating on the substrate surface with micro-grooves. Characterisations such as micromorphology, composition analysis and tribological performance were examined. Results showed that the morphology of the laser prepared micro-groove consisted of two hills and one valley. The grid-textured samples sprayed with alumina/GNPs coating showed the lowest coefficient of friction and wear rate, which was benefited from the larger texture density and the friction reduction of GNPs lubrication film.

AB - This work aims to provide a method for improving the tribological properties of WC/Co substrates. Laser surface texturing technology was employed to fabricate micro-grooves on the substrate surfaces. Suspension high velocity oxy fuel thermal spraying technique was used to deposit 99 wt-% alumina + 1 wt-% graphene nanoplatelets (GNPs) coating on the substrate surface with micro-grooves. Characterisations such as micromorphology, composition analysis and tribological performance were examined. Results showed that the morphology of the laser prepared micro-groove consisted of two hills and one valley. The grid-textured samples sprayed with alumina/GNPs coating showed the lowest coefficient of friction and wear rate, which was benefited from the larger texture density and the friction reduction of GNPs lubrication film.

KW - SHVOF

KW - WC/Co

KW - graphene nanoplatelets

KW - micro-texture

KW - tribological behaviour

UR - https://www.scopus.com/pages/publications/85195558027

U2 - 10.1177/02670836231223800

DO - 10.1177/02670836231223800

M3 - Article

AN - SCOPUS:85195558027

SN - 0267-0836

VL - 40

SP - 782

EP - 798

JO - Materials Science and Technology

JF - Materials Science and Technology

IS - 10

ER -

Alumina/GNPs coating on textured WC/Co substrate: microstructure and tribology

Abstract

Keywords

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