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Scratch testing of cemented carbides - Influence of Co binder phase and WC grain size on surface deformation and degradation mechanisms
Högskolan Dalarna, Akademin Industri och samhälle, Materialteknik.
Högskolan Dalarna, Akademin Industri och samhälle, Materialteknik.ORCID-id: 0000-0001-7938-9909
2018 (engelsk)Inngår i: Proceedings of The 18th Nordic Symposium on Tribology - Nordtrib 2018 / [ed] Staffan Jacobson, Uppsala: Uppsala University, 2018Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
Uppsala: Uppsala University, 2018.
Emneord [en]
Scratch testing, Cemented carbide, Microstructure, Surface deformation, Wear
HSV kategori
Forskningsprogram
Stålformning och ytteknik
Identifikatorer
URN: urn:nbn:se:du-28042OAI: oai:DiVA.org:du-28042DiVA, id: diva2:1228501
Konferanse
18th Nordic Symposium on Tribology - Nordtrib 2018
Forskningsfinansiär
Knowledge Foundation, 20150193Tilgjengelig fra: 2018-06-28 Laget: 2018-06-28 Sist oppdatert: 2018-06-28bibliografisk kontrollert

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Olsson, MikaelSurreddi, Kumar Babu

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