Abstract
This study proposes a novel design of binders for polycrystalline cubic boron nitride (PcBN) cutting tool materials. Well-known binder phases TiC and TiN were combined with transitional metal nitrides ZrN, VN, and HfN. Performance screenings of longitudinal turning Inconel 718 and AISI 316 L highlighted the superior performance of PcBN materials with mixed TiC-ZrN and TiC-VN binders. These two systems were further sintered in a wider range of temperatures. XRD and STEM-XEDS analysis confirmed mutual dissolution of both TiC and ZrN, and TiC and VN, thus forming two types of solid solutions (Ti,Zr)(C,N) and (Ti,V)(C,N). Extended performance tests showed that tools with TiC-ZrN binder outperform reference PcBN with TiC binder by up to 20% when machining Inconel 718. When machining hardened Caldie tool steel, the performance of tools with TiC-ZrN and TiC-VN binders were 80–90% higher than the reference tools.
Original language | English |
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Pages (from-to) | 4513-4527 |
Journal | Journal of the European Ceramic Society |
Volume | 42 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2022 |
Bibliographical note
Funding Information:This research was supported by Flintstone 2020 , European Commission' project was funded by European Union’s Horizon 2020 Research , European Commission' and Innovation Programme , European Commission' under the (grant agreement number 689279 ), as well as by a Visby Scholarship from the Swedish Institute (grant number 25946/2018 ). It is also a part of the Sustainable Production Initiative cooperation between Lund University and Chalmers University of Technology .
Funding Information:
This research was supported by Flintstone 2020, European Commission' project was funded by European Union's Horizon 2020 Research, European Commission' and Innovation Programme, European Commission' under the (grant agreement number 689279), as well as by a Visby Scholarship from the Swedish Institute (grant number 25946/2018). It is also a part of the Sustainable Production Initiative cooperation between Lund University and Chalmers University of Technology.
Publisher Copyright:
© 2022 The Authors
Subject classification (UKÄ)
- Metallurgy and Metallic Materials
Free keywords
- CBN
- HPHT
- Machining
- Microstructure
- Solid solution