Surface characterization of steel/steel contact lubricated by PAO6 with novel black phosphorus nanocomposites

Zhiheng Luo; Jingyuan Yu; Yufu Xu; He Xi; Gang Cheng; Lulu Yao; Ruhong Song; Karl D. Dearn

doi:10.1007/s40544-020-0366-3

Friction (Aug 2020)

Surface characterization of steel/steel contact lubricated by PAO6 with novel black phosphorus nanocomposites

Zhiheng Luo,
Jingyuan Yu,
Yufu Xu,
He Xi,
Gang Cheng,
Lulu Yao,
Ruhong Song,
Karl D. Dearn

Affiliations

Zhiheng Luo: Institute of Tribology, School of Mechanical Engineering, Hefei University of Technology
Jingyuan Yu: Institute of Tribology, School of Mechanical Engineering, Hefei University of Technology
Yufu Xu: Institute of Tribology, School of Mechanical Engineering, Hefei University of Technology
He Xi: Institute of Tribology, School of Mechanical Engineering, Hefei University of Technology
Gang Cheng: Institute of Tribology, School of Mechanical Engineering, Hefei University of Technology
Lulu Yao: School of Chemistry and Chemical Engineering, Hefei University of Technology
Ruhong Song: Institute of Tribology, School of Mechanical Engineering, Hefei University of Technology
Karl D. Dearn: Mason Institute of Tribology, School of Engineering, University of Birmingham

DOI: https://doi.org/10.1007/s40544-020-0366-3
Journal volume & issue: Vol. 9, no. 4
pp. 723 – 733

Abstract

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Abstract In the present work, two types of novel nano additives, titanium sulfonate ligand/black phosphorus (TiL4/BP) and titanium dioxide/black phosphorus (TiO2/BP) nanocomposites, were prepared. The tribological behavior of the steel/steel friction pairs lubricated by polyalphaolefins type 6 (PAO6) containing the nanocomposites under boundary lubrication was studied. The worn surfaces were analyzed using modern surface techniques. The experimental results show that the rubbed surfaces became smooth and showed little wear with the addition of the nanocomposites. TiO2/BP nanocomposites can significantly improve the lubricity of BP nanosheets under high contact stress. The synergistic roles of the load-bearing abilities and rolling effect of TiO2 nanoparticles, the slip induced by the BP with its layered structure, and the establishment of a tribofilm on the sliding interface are the basis of the tribological mechanisms.

Published in Friction

ISSN: 2223-7690 (Print); 2223-7704 (Online)
Publisher: SpringerOpen
Country of publisher: China
LCC subjects: Technology: Mechanical engineering and machinery
Website: http://www.springer.com/40544

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