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Mechanisms of plastic deformation in WC-Co and WC-Ni-Fe turning inserts
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. (Tribomaterials)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences. Sandvik Coromant R&D. (Tribomaterials)
2017 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

This work is an inital study on microstructural features along the flank face of plastically deformed turning inserts. The turning inserts used are WC-NiFe hardmetals that have been used in face turning with noticeable plastic deformation and flaking of the coating at the cutting edge limiting the life time. It was found that the flank face could be split into five zones of different conditions during the turning test based on the outer appearance. These five zones also exhibited different signs of plastic deformation in their microstructure, seen in both focused ion beam cross sections and in a mechanically polished cross section, including what is believed to be cavity and lamellae formation from grain boundary sliding. The microscopic plastic deformation of the turning inserts in this work were compared with litterature on deformed WC-Co.

Place, publisher, year, edition, pages
2017.
Keyword [en]
hardmetal, turning, alternative binder, deformation mechanism, grain boundary sliding
National Category
Engineering and Technology Materials Engineering
Research subject
Engineering Science with specialization in Tribo Materials
Identifiers
URN: urn:nbn:se:uu:diva-332453OAI: oai:DiVA.org:uu-332453DiVA: diva2:1153112
Conference
19th Plansee Seminar 2017
Available from: 2017-10-27 Created: 2017-10-27 Last updated: 2017-11-01Bibliographically approved

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