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Microstructure and Tribological Behavior of CrN-Cu Nanocoatings Deposited by PVD Systems
Technical Paper
2016-01-0492
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The present study focused on CrN-Cu nanocoatings composed of nano-meter grains with CrN, Cr and Cu functioning low-friction, anti-wear and heat resistance. The coatings were synthesized by hybrid PVD including metal arc source, magentron sputter source and ion-gun source. Although Cu has low hardness, the hardness of CrNCu is not declined because it was composed of below 20nm sized grains of CrN, Cr, and Cu. However, CrN-Cu had lower friction than CrN owing to Cu’s low shear strength. CrN-Cu films optimized using the Reaction Surface Method (RSM) showed the excellent tribological behavior and low coefficient of friction compared with DLC. The tribological properties of the Cr-Cu-N demonstrated superior wear resistance and low friction at normal and high temperature conditions. The CrN-Cu nanocoatings can be used for the downsizing automotive engines working at severe tribological conditions.
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Citation
Kim, B., "Microstructure and Tribological Behavior of CrN-Cu Nanocoatings Deposited by PVD Systems," SAE Technical Paper 2016-01-0492, 2016, https://doi.org/10.4271/2016-01-0492.Also In
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