Modelling of tribo-chemical reactions in HiPIMS W-C:H coatings during friction in different environments

František Lofaj, Radovan Bureš, Margita Kabátová, Hiroyoshi Tanaka, Yoshinori Sawae

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

The modelling of simultaneous chemical reactions in complex systems was successfully applied to mechano(tribo)chemical reactions during friction between steel ball and High Power Impulse Magnetron Sputtered (HiPIMS) W-C:H coatings in humid air, dry nitrogen, hydrogen and in vacuum. The main mechano(tribo)chemical reactions leading to transfer layer formation in humid air - oxidation of WC and Fe, water vapor decomposition and carbon hydrogenation - were confirmed. In nitrogen, the decomposition of WC producing carbon was predicted. The prediction in hydrogen was only the formation of methane. In vacuum, the decomposition of WC and FeOWO3 into W and Fe and CO formation were dominant. Thus, the friction is controlled via amount of hydrogenated carbon resulting from the dominant mechano(tribo)chemical reactions.

本文言語英語
論文番号128238
ジャーナルSurface and Coatings Technology
434
DOI
出版ステータス出版済み - 3月 25 2022

!!!All Science Journal Classification (ASJC) codes

  • 化学一般
  • 凝縮系物理学
  • 表面および界面
  • 表面、皮膜および薄膜
  • 材料化学

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