KIT | KIT-Bibliothek | Impressum | Datenschutz

Wear Study of a Magnetron-Sputtered TiC/a-C Nanocomposite Coating under Media-Lubricated Oscillating Sliding Conditions

Schneider, Johannes ORCID iD icon 1; Ulrich, Sven 2; Patscheider, Jörg; Stueber, Michael 2
1 Institut für Angewandte Materialien – Zuverlässigkeit und Mikrostruktur (IAM-ZM), Karlsruher Institut für Technologie (KIT)
2 Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP), Karlsruher Institut für Technologie (KIT)

Abstract:

Friction and wear performance of non-reactively magnetron-sputtered hydrogen-free TiC/a-C coatings were characterized under lubricated oscillating sliding conditions against 100Cr6 steel. The friction mediators, isooctane, ethanol and distilled water, were chosen to address the actual trend of environmentally friendly green technologies in mobility and the potential use of carbon-based nanocomposite thin film materials for tribocomponents in contact with gasoline and alternative biofuels. Sliding pairs of the TiC/a-C coatings showed significantly reduced friction and wear compared to the reference materials under both unlubricated and lubricated conditions (when using the aforementioned media isooctane, ethanol and distilled water). Quasi-stationary friction coefficient of the TiC/a-C sliding pairs after running-in was almost independent of test conditions and could be traced back to self-lubrication as a result of the formation of a transfer layer on the steel counter body. Wear of the coatings based on micro-abrasion and tribochemical reaction was significantly influenced by the environmental conditions. Lowest wear was measured after tests in non-polar isooctane whereas highest wear was measured after tests in water.


Verlagsausgabe §
DOI: 10.5445/IR/1000145740
Veröffentlicht am 05.05.2022
Originalveröffentlichung
DOI: 10.3390/coatings12040446
Scopus
Zitationen: 6
Web of Science
Zitationen: 6
Dimensions
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP)
Institut für Angewandte Materialien – Zuverlässigkeit und Mikrostruktur (IAM-ZM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2079-6412
KITopen-ID: 1000145740
HGF-Programm 38.04.01 (POF IV, LK 01) Gas turbines
Erschienen in Coatings
Verlag MDPI
Band 12
Heft 4
Seiten Art.-Nr.: 446
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 25.03.2022
Schlagwörter carbon-based nanocomposite; thin films; magnetron sputtering; tribology; wear; friction; wear mechanism
Nachgewiesen in Scopus
Web of Science
Dimensions
Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page