Friction properties of graphite coating deposited on wedge-shaped textured aluminum alloys prepared by 3D printing

Yin, Hongze; Chen, Wengang; Xia, Dongsheng; Wu, Huajie; Jing, Peiyao; Chen, Long; Zhang, Luzhong; Wang, Yuhao; Wang, Zexiao; Li, D.Y.

doi:10.1016/j.jmrt.2022.08.168

Cited by 19 publications

(3 citation statements)

References 40 publications

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“…Therefore, researchers have begun to combine traditional material modi cation techniques with bionic surface microtexturing. Hongze Yin et al [14] reported that a counterclockwise wedge-shaped triangular textured composite graphite coating could reduce the friction coe cient of Al-Si-10Mg by 24%. Youqiang Xing et al [15] showed that the bionic surface microtexture composite DLC coating reduced the friction coe cient of Al-Si-10Mg by 82%-86.6% relative to that of the base material.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Wang,

Lin,

Yin

et al. 2024

Preprint

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This study designs new Fe-amorphous/Al-12Si piston composite materials. Study the effect and synergistic mechanism of the addition of Fe-amorphous and bionic micro-textured laser surface on the high-temperature friction performance of Al-12Si piston material under mixed lubrication conditions of B30 biodiesel and engine lubricating oil. The results indicate that the frictional properties of the untextured surface of the Fe-amorphous/Al-12Si composite material depend primarily on the amount of Fe-amorphous added. The 10 wt% Fe-amorphous/Al-12Si composite exhibits a dense, void-free microstructure with optimum anti-friction and anti-wear performance. It is noteworthy that the interaction between the "anchoring" effect caused by the Fe-amorphous addition and the synergistic effect of the bionic microtexture providing a stable lubricating environment further enhances the high-temperature friction properties of Al-12Si.

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Section: Introductionmentioning

confidence: 99%

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Wang,

Lin,

Yin

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Therefore, researchers have begun to combine traditional material modi cation techniques with bionic surface microtexturing. Hongze Yin et al [21] reported that a counterclockwise wedge-shaped triangular textured composite graphite coating could reduce the friction coe cient of Al-Si-10Mg by 24%.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Wang,

Lin,

Yin

et al. 2023

Preprint

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The objective of this study is to enhance the friction properties of piston materials under high temperatures. To achieve this, we developed a novel piston composite material (Fe-amorphous/Al-12Si) by incorporating Fe-amorphous. Additionally, we employed bionic micro-textured laser surface treatment technology to improve its wear resistance. The influence of Fe-amorphous content on the frictional properties of the composite material was investigated, together with the synergistic mechanism of Fe-amorphous addition and biomimetic texture on Al-12Si under the lubrication conditions of B30 biodiesel diluted engine oil. The results indicate that the frictional properties of the untextured surface of the Fe-amorphous/Al-12Si composite material depend primarily on the amount of Fe-amorphous added. The 10 wt% Fe-amorphous/Al-12Si composite exhibits a dense, void-free microstructure with optimum anti-friction and anti-wear performance. It is noteworthy that the interaction between the "anchoring effect" caused by the Fe-amorphous addition and the "fluid-dynamic lubrication effect" induced by the biomimetic texture further enhances the high-temperature friction properties of Al-12Si. Therefore, this study provides a novel approach for the development of piston materials for biodiesel engines.

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“…Huang et al 10 used a chemical plating method to deposit Ag/MoS2 solid lubricant into the pits and performed wear tests, the results showed that the COF and wear were greatly reduced because the solid lubricant forms a lubricating film on the surface. Furthermore, Yin et al 11 sprayed non-metallic solid lubricant (graphite particles) on a textured surface and concluded that the graphite significantly improved the tribological properties of surface through wear tests. Meng et al 12 researched the anti-friction of different types of solid lubricants (CaF 2 , WS 2 and graphite) in textures.…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of high-speed steel surface with texture and vertical fibers

Feng

Wang

et al. 2023

Sci Rep

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Inadequate lubrication of the two touching surfaces during friction can lead to severe wear, especially in metal cutting. Therefore, a surface with synergistic anti-friction effect of texture and solid lubricant was proposed to improve lubrication. A mesh texture with excellent wettability was prepared on the high-speed steel (HSS) surface by laser, and then nylon fibers were vertically implanted into the grooves of the texture using the electrostatic flocking technology. The friction and wear state of different surfaces (smooth, textured, flocking) under dry/oil-lubricated were studied by a linear reciprocating wear tester. The coefficient of friction (COF) under different working conditions was used to analyze the anti-friction properties, and the wear rate was used to evaluate the wear resistance of the surface. The results showed that the tribological properties of flocking surfaces were better than those of the other two surfaces. This is because the addition of nylon fibers eases shear at the edges of the texture. The broken fibers form a solid lubricating film on the specimen surface, which prevents the surface from being scratched by debris. In addition, it is found that COF decreases with increasing load. Finally, the rapid wettability of the oil droplets on the flocking surface shows the great potential of the surface for lubrication and anti-friction.

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Friction properties of graphite coating deposited on wedge-shaped textured aluminum alloys prepared by 3D printing

Cited by 19 publications

References 40 publications

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Tribological properties of high-speed steel surface with texture and vertical fibers

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