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https://hdl.handle.net/10316/115077
Título: | Tribological study of W-S-(C) sputtered coatings sliding against aluminium at elevated temperatures | Autor: | Vuchkov, Todor Sunny, Saniat Jahan Cavaleiro, Albano |
Palavras-chave: | Magnetron sputtering; Transition metal dichalcogenides; Self-lubricant; Tribology | Data: | 2024 | Editora: | Elsevier | Projeto: | This work is sponsored by FEDER and by National funds through FCT-Fundaç˜ao para a Ciˆencia e a Tecnologia under the projects: CEMMPRE ref. “UIDB/00285/2020” and ARISE ref. “LA/P/0112/ 2020”. This work was supported by the project Sim2Adapt (reference 2022.02370.PTDC, doi: 10.54499/2022.08459.PTDC), funded by Portuguese Foundation for Science and Technology. This research was also funded by PRR - Recovery and Resilience Plan and by the Next Generation EU Funds, following NOTICE N.◦ 02/C05-i01/2022, Component 5 – Capitalization and Business Innovation - Mobilizing Agendas for Business Innovation under the AM2R project “Mobilizing Agenda for business innovation in the Two Wheels sector” (reference: 7253). | Título da revista, periódico, livro ou evento: | Surface and Coatings Technology | Volume: | 483 | Resumo: | Aluminium metal forming is often performed at elevated temperatures which can cause significant galling, damage to the produced parts and increased manufacturing costs. Self-lubricating thin films deposited by magnetron sputtering are good candidates for alleviating this issue. In this study we deposited three types of films containing transition metal dichalcogenides, of which one consisted only of WSx and two films were alloyed with carbon. The aim of the work was to assess the ability of these coatings to reduce galling in sliding contacts with aluminium at elevated temperatures. The thermal analysis indicated that the maximum operating temperature should be ~400–430 ◦C, for the pure WS coating, and a higher value of ~480–490 for the carbon alloyed films. The coatings managed to provide friction reduction in all the testing conditions, except for the carbon alloyed one with the highest amount of carbon which could not provide lubrication against aluminium at 400 ◦C. | URI: | https://hdl.handle.net/10316/115077 | ISSN: | 02578972 | DOI: | 10.1016/j.surfcoat.2024.130750 | Direitos: | openAccess |
Aparece nas coleções: | I&D CEMMPRE - Artigos em Revistas Internacionais FCTUC Eng.Mecânica - Artigos em Revistas Internacionais |
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Tribological study of W-S-(C) sputtered coatings sliding against aluminium at elevated temperatures.pdf | 27.28 MB | Adobe PDF | Ver/Abrir |
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