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Investigation of material transfer in sliding friction-topography or surface chemistry?
Uppsala Univ, Angstrom Tribomat Grp, Box 534, S-75121 Uppsala, Sweden..
Uppsala Univ, Angstrom Tribomat Grp, Box 534, S-75121 Uppsala, Sweden..
Högskolan Dalarna, Akademin Industri och samhälle, Materialteknik. Uppsala Univ, Angstrom Tribomat Grp, Box 534, S-75121 Uppsala, Sweden. (Tribologi)
Uppsala Univ, Angstrom Tribomat Grp, Box 534, S-75121 Uppsala, Sweden..
2016 (engelsk)Inngår i: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 100, s. 213-223Artikkel i tidsskrift (Fagfellevurdert) Published
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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.

sted, utgiver, år, opplag, sider
2016. Vol. 100, s. 213-223
Emneord [en]
Sliding, Topography, Coating, Transfer
HSV kategori
Forskningsprogram
Stålformning och ytteknik
Identifikatorer
URN: urn:nbn:se:du-22664DOI: 10.1016/j.triboint.2016.01.022ISI: 000379279600025OAI: oai:DiVA.org:du-22664DiVA, id: diva2:950991
Tilgjengelig fra: 2016-08-04 Laget: 2016-08-04 Sist oppdatert: 2017-11-28bibliografisk kontrollert

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