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Tribological properties of composite multilayer coating
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.
Atatürk University.
2010 (English)In: 14th Nordic Symposium on Tribology: NORDTRIB 2010 : Storforsen, Sweden, June 8-11, 2010, Luleå: Luleå tekniska universitet, 2010Conference paper (Refereed)
Abstract [en]

The use of surface coatings is emerging as one of the most important approaches in reducing friction and wear in various tribological applications. Even though single layer coatings have a wide range of applications, the performance of the single layer alone may not always be adequate to meet the desired tribological property requirements. Hence, coatings consisting of multi-layers to meet different property requirements in demanding applications are required. In this study, the tribological properties of a graded composite multilayer coating with a specific layer sequence of MoS2:Ti/MoS2:TiBN/TiBN/TiB2/Ti deposited on tool steel substrate have been investigated at temperatures of 40°C and 400°C respectively. The experimental results from the tests at 40°C have shown that the friction coefficient value rangesbetween 0.02 and 0.034. It was found that the deposition parameters influenced the friction and durability of the coatings. Higher substrate bias was found to result in higher friction and the coating deposited at high substrate bias and low N2 flow showed the lowest durability. The friction coefficient and durability of the coatings were found to be highly dependent on temperature. At high temperature, the friction coefficient increases almost three fold and the durability decreases significantly.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2010.
Research subject
Machine Elements
URN: urn:nbn:se:ltu:diva-37041Local ID: ae984760-834d-11df-ab16-000ea68e967bISBN: 978-91-7439-124-4 (PDF)OAI: diva2:1010539
Nordic Symposium on Tribology : 08/06/2010 - 11/06/2010
Godkänd; 2010; Bibliografisk uppgift: CD-ROM; 20100629 (ysko)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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