Phase composition, microstructure, and tribological behavior of chrome-based ARE coatings

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• 作者：M. M. Khrushchov (16270)
  A. P. Semenov (16270)
  
• 关键词：chrome PA PVD coatings ; phase composition ; amorphous and nanostructured phases of carbides of transition metals in coatings ; X ; ray diffuse scattering ; nanocomposite structure ; free carbon inclusions ; tribological characteristics
• 刊名：Journal of Friction and Wear
• 出版年：2013
• 出版时间：February 2013
• 年：2013
• 卷：34
• 期：1
• 页码：57-64
• 全文大小：646KB
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• 作者单位：M. M. Khrushchov (16270)
  A. P. Semenov (16270)
  
  16270. Blagonravov Institute of Machine Science, Russian Academy of Sciences, Malyi Kharitonievskii per. 4, Moscow, 101990, Russia
  
• ISSN：1934-9386

文摘

The paper deals with studying the structure, as well as the mechanical and tribological properties, of chrome-based coatings deposited by activated reactive evaporation (ARE) in the active atmosphere of N2, CO2, C2H2, and their binary mixtures (50: 50). Based on the data of the phase composition, conditions for the interaction of a metal being deposited with the active gas have been analyzed. A method of restoring the diffuse scattering by coatings deposited on substrates has been used to investigate specific features of the structural state formed in a coating synthesized in the acetylene-nitrogen mixture and containing the nanostructured carbide phase Cr3C2. The results have also indicated the possible formation of microdomains, which contain substantial amounts of free or hydrogenated solid carbon, in some of the coatings. This may explain the fairly high tribological characteristics of these coatings.