TY - JOUR
T1 - Modelling of tribo-chemical reactions in HiPIMS W-C:H coatings during friction in different environments
AU - Lofaj, František
AU - Bureš, Radovan
AU - Kabátová, Margita
AU - Tanaka, Hiroyoshi
AU - Sawae, Yoshinori
N1 - Funding Information:
This work was supported by the Slovak Academy of Sciences via International Visegrad Fund [project V4-Japan Joint Research Program JP39421 ], Slovak Research and Development Agency [projects APVV 17-0059 , APVV-17-0320 , APVV-17-0049 ] and Research Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic [project VEGA 2/0017/19 ]. The equipment used in the work was acquired from the projects “Research Centre of Advanced Materials and Technologies for Recent and Future Applications” PROMATECH, ITMS: 26220220186 and “Advancement and support of R&D for “Centre for diagnostics and quality testing of materials“in the domains of the RIS3 SK specialization, ITMS2014: 313011W442, supported by the Research Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic .
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/3/25
Y1 - 2022/3/25
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85124601909&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85124601909&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2022.128238
DO - 10.1016/j.surfcoat.2022.128238
M3 - Article
AN - SCOPUS:85124601909
SN - 0257-8972
VL - 434
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
M1 - 128238
ER -