Structure and Tribological Behavior of Chromium–Carbon Coatings Obtained by Magnetron Sputtering

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This work presents the results of a comprehensive study of the structure, phase composition, mechanical and tribological characteristics of vacuum deposited chromium–carbon coatings of two different types. These two types are chromium-doped diamond-like coatings obtained by reactive magnetron sputtering of chromium in argon and in mixtures of acetylene with nitrogen; and coatings obtained by sputtering in argon of a target made by sintering of chromium powder and detonation-produced nanodiamonds. It has been shown that the features of the tribological behavior of these coatings at high contact pressures can be explained by the character of carbon phase distribution and differences in its structural state.