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Initial surface failure and wear of cemented carbides in sliding contact with different rock types
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. Materials Science, Dalarna University, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics.ORCID iD: 0000-0002-9385-7614
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.ORCID iD: 0000-0002-3955-5746
2018 (English)In: Wear, ISSN 0043-1648, E-ISSN 1873-2577, Vol. 408-409, p. 43-55Article in journal (Refereed) Published
Abstract [en]

The initial wear, deformation and degradation of cemented carbide in contact with different rock types are studied using a crossed cylinder sliding test. The sliding distance is limited to centimetres at a time, interrupted by successive SEM analysis. This allows for careful studies of the gradually changing microstructure of the cemented carbide during the test. Five different rock types are included; granite, metal sulphide ore, mica schist, quartzite and marble. All rock types are very different in microstructure, composition and properties. The cemented carbide grade used for the evaluation contains 6 wt% Co and fine (~ 1 µm) WC grains, a grade commonly used in rock drilling. The results show that the cemented carbide microstructure becomes altered already during the very first contact with rock. The initial wear rate and wear character is highly influenced by the rock type. The initial wear of the cemented carbide is highest against quartzite and lowest against marble.

Place, publisher, year, edition, pages
2018. Vol. 408-409, p. 43-55
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:uu:diva-351006DOI: 10.1016/j.wear.2018.04.017ISI: 000436482000005OAI: oai:DiVA.org:uu-351006DiVA, id: diva2:1206647
Funder
Knowledge Foundation, 20150193Available from: 2018-05-17 Created: 2018-05-17 Last updated: 2018-09-12Bibliographically approved

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Heinrichs, JannicaOlsson, MikaelAlmqvist, BjarneJacobson, Staffan

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Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

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