The composition of wear-resistant Al/AlC/a-C:H coatings deposited on a magnesium alloy by combination of radio frequency plasma assisted chemical vapor deposition and magnetron sputtering is studied. It is shown that the mechanical properties of the coatings vary depending on the composition of the amorphous C:H layers after changing the negative bias polarization of the process from 150 to 600 V; the carbon structure may be varied from a disordered one to a graphite one as well as the sp2/sp3 bonds ratio.
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The present work has been supported by the Polish State Committee for Scientific Research (Project No. NN 507 269540) and by the European Commission in the framework of the ERA. Net RUS Plus Program (Project LIGHTMAT4SPACE: Lightweight Nanocrystalline Aluminum-Based Material for Space Applications; modelling and technology verification).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 31 – 37, July, 2018.
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Kaczmarek, Ł., Klich, M., Tuta, W. et al. Influence of the Chemical Composition of Al/AlC/a-C:H Coatings on the Mechanical Properties of Magnesium Alloy AZ31. Met Sci Heat Treat 60, 443–449 (2018). https://doi.org/10.1007/s11041-018-0298-y
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DOI: https://doi.org/10.1007/s11041-018-0298-y