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Scratch testing of cemented carbides - Influence of Co binder phase and WC grain size on surface deformation and degradation mechanisms
Dalarna University, School of Technology and Business Studies, Materials Technology.
Dalarna University, School of Technology and Business Studies, Materials Technology.ORCID iD: 0000-0001-7938-9909
2018 (English)In: Proceedings of The 18th Nordic Symposium on Tribology - Nordtrib 2018 / [ed] Staffan Jacobson, Uppsala: Uppsala University, 2018Conference paper, Published paper (Refereed)
Abstract [en]

In the present study, the microstructural response of some commercial cemented carbide grades during scratchinghas been analyzed and evaluated by a number of post-test characterization techniques. The influence of Co binder phase content and WC grain size on the deformation and degradation on a WC grain size scale and on a composite scaleare evaluated. The results clearly illustrate the complexity of deformation, degradation and wear of cemented carbide and the dynamics of the diamond stylus / cemented carbide contact during the scratching event. For all cementedcarbide grades the microstructure has a strong impact on the observed degradation mechanisms and the resistance to deformation and degradation was found to increase with decreasing Co content and decreasing WC grain size.

Place, publisher, year, edition, pages
Uppsala: Uppsala University, 2018.
Keywords [en]
Scratch testing, Cemented carbide, Microstructure, Surface deformation, Wear
National Category
Materials Engineering
Research subject
Steel Forming and Surface Engineering
Identifiers
URN: urn:nbn:se:du-28042OAI: oai:DiVA.org:du-28042DiVA, id: diva2:1228501
Conference
18th Nordic Symposium on Tribology - Nordtrib 2018
Funder
Knowledge Foundation, 20150193Available from: 2018-06-28 Created: 2018-06-28 Last updated: 2018-06-28Bibliographically approved

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Olsson, MikaelSurreddi, Kumar Babu

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf