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Wear of nano-structured carbide-free bainitic steels under dry rolling-sliding conditions
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0003-1454-1118
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2013 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 298-299, no 1, p. 42-47Article in journal (Refereed) Published
Abstract [en]

Specially designed steels with carbon contents from 0.6 to 1.0 wt.% were isothermally transformed at very low temperatures, between 220 and 270 °C, in order to obtain a nano-structured bainitic microstructure. It is shown that the wear resistance in dry rolling-sliding of these nano-structured steels is significantly superior to that ofbainitic steels transformed at higher temperatures with similar hardness values.In addition to the highly refined microstructure, the transformation under strain to martensite (TRIP effect), contributes to the plasticity of the nano-scaled steels, increasing surface hardness during testing, thus reducing the wear rate.

Place, publisher, year, edition, pages
2013. Vol. 298-299, no 1, p. 42-47
National Category
Other Materials Engineering Applied Mechanics Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Engineering Materials; Solid Mechanics; Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-6800DOI: 10.1016/j.wear.2012.11.064Local ID: 518a4782-f740-4041-894d-77e7f8e9b6a0OAI: oai:DiVA.org:ltu-6800DiVA: diva2:979686
Note
Validerad; 2013; 20121207 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-01-10Bibliographically approved

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Leiro, AlejandroVuorinen, EsaSundin, Karl-GustafPrakash, Braham
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Other Materials EngineeringApplied MechanicsTribology (Interacting Surfaces including Friction, Lubrication and Wear)

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