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Investigation of material transfer in sliding friction-topography or surface chemistry?
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. Dalarna Univ, Mat Sci, S-79188 Falun, Sweden..
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
2016 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 100, 213-223 p.Article in journal (Refereed) PublishedText
Abstract [en]

To differentiate between the roles of surface topography and chemical composition on influencing friction and transfer in sliding contact, a series of tests were performed in situ in an SEM. The initial sliding during metal forming was investigated, using an aluminum tip representing the work material, put into sliding contact with a polished flat tool material. Both DLC-coated and uncoated tool steel was used. By varying the final polishing step of the tool material, different surface topographies were obtained. The study demonstrates the strong influence from nano topography of an unpolished DLC coated surface on both coefficient of friction and material transfer. The influence of tool surface chemistry is also discussed.

Place, publisher, year, edition, pages
2016. Vol. 100, 213-223 p.
Keyword [en]
Sliding, Topography, Coating, Transfer
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:uu:diva-300443DOI: 10.1016/j.triboint.2016.01.022ISI: 000379279600025OAI: oai:DiVA.org:uu-300443DiVA: diva2:951527
Funder
Swedish Research Council, 621-2013-5858
Available from: 2016-08-09 Created: 2016-08-09 Last updated: 2016-09-02Bibliographically approved

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Westlund, ViktoriaHeinrichs, JannicaOlsson, MikaelJacobson, Staffan
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