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Nano-scale friction of multi-phase powder metallurgy tool steels
Karlstad University.
Karlstad University.
Karlstad University.
Linköping University, Department of Physics, Chemistry and Biology, Thin Film Physics. Linköping University, Faculty of Science & Engineering. (Tunnfilmsfysik, Thin Film Physics)ORCID iD: 0000-0003-3277-1945
2015 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 1119, 70-74 p.Article in journal (Refereed) Published
Abstract [en]

Friction is a fundamental phenomenon in tribology involving complex mechanisms between thecontacting surfaces. Measurements of friction are often made using devices with substantially largercontact area than dimensions corresponding to microstructural features of the materials. Hence, for multi-phase materials,influence of particular microstructural constituents is not resolved. In the present work, a tribometerwith a contact area in the nano-scale range was used to map friction for different types of tool steelswith different chemical- and phase composition. Owing to the small tip radius, frictionalcharacteristics of primary carbides and the steel matrix were measured and compared. Dependingon chemical composition, a difference was observed where the coefficient of friction wasapproximately twice higher for the steel possessing highest coefficient of friction, including bothcarbides and the steel matrix.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2015. Vol. 1119, 70-74 p.
National Category
Tribology
Identifiers
URN: urn:nbn:se:liu:diva-120419DOI: 10.4028/www.scientific.net/AMR.1119.70OAI: oai:DiVA.org:liu-120419DiVA: diva2:844746
Available from: 2015-08-07 Created: 2015-08-07 Last updated: 2015-09-11Bibliographically approved

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Broitman, Esteban
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Thin Film PhysicsFaculty of Science & Engineering
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