Self-Regenerative Mo-Based Solid Lubricant Coatings Deposited by APS as a PVD Alternative: Mechanical and Tribological Performance

Simple item page
dc.catalogadorpau
dc.contributor.authorKonopka, Dennis
dc.contributor.authorCrespo Martins, Ricardo
dc.contributor.authorDukat, Mareike
dc.contributor.authorPape, Florian
dc.contributor.authorMöhwald, Kai
dc.contributor.authorPoll, Gerhard
dc.contributor.authorMarian, Max
dc.date.accessioned2025-09-25T18:19:45Z
dc.date.available2025-09-25T18:19:45Z
dc.date.issued2025
dc.description.abstractSolid lubricant coatings are essential for reducing friction and wear in tribo-mechanical systems, particularly in environments where traditional liquid lubricants can’t be used or fail. It has been reported in literature that self-regenerating physical vapor deposition (PVD) coatings can be designed in such a way that they continuously release MoO3 as a solid lubricant through tribo-oxidation. However, a disadvantage of PVD coatings is the limited layer thickness of just a few micrometers and thus the limited solid lubricant reservoir. In contrast, atmospheric plasma spraying (APS) allows the deposition of thicker reservoir layers, potentially extending service life under tribological stressing. Therefore, the aims of this study are to determine whether APS coatings with regenerative properties can be deposited on bearing steel and to assess their tribological performance. The mechanical, tribological, and structural behavior were analyzed using microindentation, ball-on-plate tribometer testing under dry conditions, optical and laser scanning, scanning electron microscopy (SEM), and energy-dispersive x-ray spectroscopy (EDX). Despite the relatively low hardness of the APS coating, excellent wear resistance protection was demonstrated at various loads and sliding velocities. Additionally, EDX analyses revealed that abrasive wear was prevented and a protective film was formed through tribo-oxidation, effectively shielding the surfaces. The results thus indicate the effectiveness of the APS coating and underline its potential for large-scale machine elements, such as rolling bearings.
dc.fechaingreso.objetodigital2025-09-25
dc.format.extent16 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1080/10402004.2025.2519334
dc.identifier.urihttps://doi.org/10.1080/10402004.2025.2519334
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/105766
dc.information.autorucEscuela de Ingeniería; Marian , Max; 0000-0003-2045-6649; 1247429
dc.issue.numero5
dc.language.isoen
dc.nota.accesocontenido completo
dc.revistaTribology Transactions
dc.rightsacceso abierto
dc.subjectCoatings
dc.subjectWear-resistant
dc.subjectSolid lubrication
dc.subjectSelf-lubrication
dc.subjectDFG SPP 2074
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.subject.ods09 Industry, innovation and infrastructure
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleSelf-Regenerative Mo-Based Solid Lubricant Coatings Deposited by APS as a PVD Alternative: Mechanical and Tribological Performance
dc.typeartículo
dc.volumen68
sipa.codpersvinculados1247429
sipa.trazabilidadORCID;2025-09-22
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Self-Regenerative Mo-Based Solid Lubricant Coatings Deposited by APS as a PVD Alternative Mechanical and Tribological Performance.pdf
Size:
3.9 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas