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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Huang, S. G.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2019Slow crack growth resistance of electrically conductive zirconia-based composites with non-oxide reinforcementscitations
- 2019Microstructural investigation and machining performance of NbC-Ti(C0.5N0.5) matrix cermetscitations
- 2019Microstructural investigation and machining performance of NbC-Ti (C<sub>0.5</sub>N<sub>0.5</sub>) matrix cermetscitations
- 2018NbC grain growth control and mechanical properties of Ni bonded NbC cermets prepared by vacuum liquid phase sinteringcitations
- 2018NbC-based cermets: influence of secondary carbide addition and metal binder
- 2017Microstructure and tribological performance of NbC-Ni cermets modified by VC and Mo<sub>2</sub>Ccitations
- 2017Stainless steel bonded NbC matrix cermets using a submicron NbC starting powdercitations
- 2016Densification and tribological profile of niobium oxidecitations
- 2016Microstructure and mechanical properties of NbC matrix cermets using Ni containing metal bindercitations
- 2010Ultrafine Al2O3-B4C composites consolidated by pulsed electric current sinteringcitations
- 2008Tailored sintering of VC-doped WC-Co cemented carbides by pulsed electric current sinteringcitations
- 2008Influence of starting powder on the microstructure of WC-Co hardmetals obtained by spark plasma sinteringcitations
- 2007VC, Cr3C2 and NbC doped WC-Co cemented carbides prepared by pulsed electric current sinteringcitations
- 2007characterization of Y2O3, CeO2 and Y2O2+CeO(2)FGM tetragonal ZrO2 ceramics by spark plasma sinteringcitations
- 2006Computer-aided designing and manufacturing of advanced steelscitations
Places of action
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article
Microstructural investigation and machining performance of NbC-Ti (C<sub>0.5</sub>N<sub>0.5</sub>) matrix cermets
Abstract
In this study, Ni or Co + Ni bonded NbC matrix cermets with secondary carbides (Mo2C and WC) as well as Ti(C0.5N0.5) were prepared by liquid phase sintering at 1450 degrees C in vacuum. Detailed microstructural investigation was performed by SEM, EPMA and XRD analysis. The microstructure, mechanical properties as well as the C45 (HB140) steel turning performance of the cermets were investigated, and compared with a commercial Ti(C0.5N0.5) based cutting insert. The sintering results indicated that the partial substitution of NbC by Ti(C0.5N0.5) had a significant effect on the core-rim microstructure and refinement of NbC solution grains, as well as improved mechanical properties of the NbC-Ti(C0.5N0.5) cermets. The phase constitution and composition of the cermets were supported by thermodynamic equilibrium calculations. All sintered cermets were composed of a fcc solid solution metal binder and a cubic core-rim NbC based solution phase, as well as an independent N-rich Ti(C,N) phase. The NbC-Ti(C0.5N0.5) and Ti(C0.5N0.5) matrix cermets had a comparable HV30 of 1500-1600 kg/mm(2) and a similar fracture toughness of 8.0 MPa m(1/2).