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Influence of sliding speed on modes of material transfer as steel slides against PVD tool coatings
Tribomaterials group, The Ångström Laboratory, Uppsala University, Uppsala, Sweden.
Tribomaterials group, The Ångström Laboratory, Uppsala University, Uppsala, Sweden.
Applied Materials Science, The Ångström Laboratory, Uppsala University, Uppsala, Sweden.
Dalarna University, School of Technology and Business Studies, Materials Technology.
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2013 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 58, p. 55-64Article in journal (Refereed) Published
Abstract [en]

An intermittent sliding test was used in order to study the formation and build- up of tribofilms during intermittent sliding of PVD coated HSS against case hardening steel (20NiCrMo2). Two cutting tool coatings were tested, TiN and AlCrN, and the influence of sliding speed was evaluated. With moderate speed,  two tribofilms were formed separately, one consisting of Mn, Si, Al and O on an intermediate layer  of Fe and one consisting of Fe, Mn, Cr and O on an intermediate layer of Cr and Mn. At low sliding speeds an uneven transfer of steel occured while high sliding speeds resulted in thermal softening of the substrate leading to coating failure. AlCrN provided better substrate protection at high speeds than TiN did.

Place, publisher, year, edition, pages
Elsevier, 2013. Vol. 58, p. 55-64
Keyword [en]
Transfer, Coating, Sliding
National Category
Manufacturing, Surface and Joining Technology
Research subject
Stålformning och ytteknik
Identifiers
URN: urn:nbn:se:du-11561DOI: 10.1016/j.triboint.2012.09.012ISI: 000312610600008OAI: oai:DiVA.org:du-11561DiVA, id: diva2:581036
Available from: 2012-12-28 Created: 2012-12-28 Last updated: 2017-12-06Bibliographically approved

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