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Influence from surface roughness on steel transfer to PVD tool coatings in continuous and intermittent sliding contacts
Dalarna University, School of Technology and Business Studies, Material Science.
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2012 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 56, p. 9-18Article in journal (Refereed) Published
Abstract [en]

A sliding test is used in order to evaluate the influence of tool surface roughness on the material transfer in intermittent and continuous sliding of PVD coated HSS against case hardening steel (20NiCrMo2). Two cutting tool coatings, TiN and AlCrN, and three different surface roughnesses are tested. For polished surfaces the same types of material transfer are obtained irrespective of sliding mode and coating type. If the surfaces are too rough, the tribofilms do not grow thick enough to separate the surfaces and the work material is abrasively worn in both sliding modes. With increased sliding distance, cracking of the TiN coating occurs while the AlCrN coating remains intact. (C) 2012 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2012. Vol. 56, p. 9-18
Keywords [en]
Transfer; Coating; Sliding; Roughness
National Category
Materials Engineering
Research subject
Stålformning och ytteknik
Identifiers
URN: urn:nbn:se:du-11321DOI: 10.1016/j.triboint.2012.06.013ISI: 000308284000002OAI: oai:DiVA.org:du-11321DiVA, id: diva2:574296
Available from: 2012-12-05 Created: 2012-11-28 Last updated: 2017-12-07Bibliographically approved

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