Friction and wear performances of 7075 aluminum alloy surface with V-shaped microtexture via numerical simulation and experimental characterizations
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 26 March 2024
Issue publication date: 15 April 2024
Abstract
Purpose
The purpose of this study is to design and process the optimal V-shaped microstructure for 7075 aluminum alloy and reveal its wear resistance mechanism and performance.
Design/methodology/approach
The hydrodynamic pressure lubrication models of the nontextured, V-shaped, circular and square microtextures are established. The corresponding oil film pressure distributions are explored. The friction and wear experiments are conducted on a rotating device. The effects of the microstructure shapes and sizes on the wear mechanisms are investigated via the friction coefficients and surface morphologies.
Findings
In comparison, the V-shaped microtexture has the largest oil film carrying capacity and the lowest friction coefficient. The wear mechanism of the V-shaped microtexture is dominated by abrasive and adhesive wear. The V-shaped microtexture has excellent wear resistance under a side length of 300 µm, an interval of 300 µm and a depth of 20 µm.
Originality/value
This study is conductive to the design of wear-resistant surfaces for friction components.
Keywords
Acknowledgements
This project is funded by National Natural Science Foundation of China (Grant Nos. 52105215, 52175194, U23A20622), Zhejiang Provincial Natural Science Foundation of China (Grant Nos. LQ22E050016, LR23E050002), China Postdoctoral Science Foundation (Grant No. 2023M733146).
Citation
Ding, C., Qiao, Z. and Piao, Z. (2024), "Friction and wear performances of 7075 aluminum alloy surface with V-shaped microtexture via numerical simulation and experimental characterizations", Industrial Lubrication and Tribology, Vol. 76 No. 3, pp. 405-418. https://doi.org/10.1108/ILT-11-2023-0351
Publisher
:Emerald Publishing Limited
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