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The Effect of Honing Angle and Roughness Height on the Tribological Performance of CuNiCr Iron Liner

1
Department of materials science and engineering, Dalian Maritime University, Dalian 116026, China
2
Key Lab of Ship-Maintenance & Manufacture, Dalian Maritime University, Dalian 116026, China
*
Authors to whom correspondence should be addressed.
Metals 2019, 9(5), 487; https://doi.org/10.3390/met9050487
Received: 3 April 2019 / Revised: 16 April 2019 / Accepted: 24 April 2019 / Published: 26 April 2019
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Abstract

This work investigated the effect of honing morphologies of CuNiCr iron liner on its tribological properties sliding against the Cr-Al2O3 coated piston ring. The worn surface morphology and elements distribution as well as the wear behaviors of CuNiCr iron liner were analyzed to explore the influencing of the honing angle and roughness height on the friction and wear resistance. The results show that the optimized honing angle and roughness can improve the tribological performance of the iron liner, and different tribological characteristics are closely related to different roughness parameters. The wear process of the CuNiCr iron liner against Cr-Al2O3 coated piston rings in sequence was platform flattening, plastic flow, growth of the flakes on the platform edge and flakes debonding. For the smooth surface, the plastic deformed flakes were much fewer due to the low height of the platforms, thus the grooves were not fully filled and there was a slight effect of the debonded debris on the friction pair. View Full-Text
Keywords: CuNiCr iron liner; honing angle and roughness; scuffing resistance; tribological performance CuNiCr iron liner; honing angle and roughness; scuffing resistance; tribological performance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Ma, S.; Liu, Y.; Wang, Z.; Wang, Z.; Huang, R.; Xu, J. The Effect of Honing Angle and Roughness Height on the Tribological Performance of CuNiCr Iron Liner. Metals 2019, 9, 487.

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