TY - CONF A1 - Huang, S. G. A1 - Vleugels, J. A1 - Mohrbacher, H. A1 - Woydt, Mathias T1 - NbC-based cermets: influence of secondary carbide addition and metal binder T2 - Proceedings of the International Symposium on Wear Resistant Alloy for the Mining and Processing Industry N2 - Full densification of Fe, Co and Ni bonded NbC based cermet’s was achieved by pressure less liquid phase sintering in vacuum for one hour at 1420°C. The hardness and toughness of the NbC matrix cermet’s can be mainly tailored by the binder composition and secondary carbide additions. Ni binder based NbC cermet’s allow the combination of high hardness and improved toughness. The addition of lesser amounts of VC/Cr3C2 in a NbC partially substituted WC-Co cemented carbide increased significantly the hardness in combination with a moderate fracture toughness. T2 - International Symposium on Wear Resistant Alloys for the Mining and Processing Industry CY - Sao Paulo, Brazil DA - 04.05.2015 KW - Niobium carbide KW - Hardmetal KW - Cemented carbide KW - Sintering KW - Grain growth KW - Microstructure KW - Hardness KW - Fracture toughness PY - 2018 SN - 978-0-692-05382-9 SP - 521 EP - 534 AN - OPUS4-44206 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Huang, S. G. A1 - Vleugels, J. A1 - Mohrbacher, H. A1 - Woydt, Mathias T1 - Effect of Ti(C0.7N0.3) content on the microstructure and mechanical properties of Ni bonded NbC-Ti(C0.7N0.3) based cermets JF - Solid State Phenomena N2 - In the present work it was shown that the addition of VC or a combination of VC + Ti(C0.7N0.3) was efficient in reducing the NbC grain growth during liquid phase sintering, when compared to NbC-Ni equivalents. A finest NbC grain size of 1.48 µm was obtained in the NbC-15 Ti(C0.7N0.3)-10 Ni-7.5 VC cermet, exhibiting a hardness of 1486 +/- 7 kg/mm2 and a fracture toughness of 8.7 +/- 0.1 MPa m 1/2. KW - Cermet KW - Niobium carbide KW - Carbonitride KW - Sintering KW - Mechanical properties PY - 2018 DO - https://doi.org/10.4028/www.scientific.net/SSP.274.43 SN - 1662-9779 VL - 274 SP - 43 EP - 52 PB - Trans Tech Publ. CY - Uetikon AN - OPUS4-44962 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Huang, S. A1 - Vleugels, J. A1 - Cannizza, E. A1 - Woydt, Mathias A1 - Liu, Z. A1 - Mohrbacher, H. T1 - Niobium carbide based cermets with secondary carbide and carbonitride addition T2 - Niobium carbide based cermets with secondary carbide and carbonitride addition N2 - In this study, the influence of Ni binder content and carbide/carbonitride additions on the microstructure and mechanical properties of NbC-Ni matrix cermets were investigated. T2 - WORLDPM2018 CY - Beijing, China DA - 16.09.2018 KW - Cermet KW - Niobium carbide KW - Carbonitride KW - Sintering KW - Mechanical properties PY - 2018 SP - Part 5, 801 EP - 809 AN - OPUS4-46201 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Huang, S. A1 - Vleugels, J. A1 - Mohrbacher, H. A1 - Cannizza, E. T1 - Tailoring the functional profile of niobium carbide (NbC) as cutting tool materials and for wear protection T2 - 2018 World Congress on Powder Metallurgy N2 - In the present work it was shown that the properties of NbCx, like micro-hardness, hot-hardness, sliding wear resistance, elastic modulus and toughness can be tailored by the C/Nb ratio, the addition of secondary carbides and the type of binder. T2 - WORLDPM2018 CY - Beijing, China DA - 16.09.2018 KW - Niobium carbide KW - Properties KW - Wear KW - Machining PY - 2018 SP - Part 5, 785 EP - 795 AN - OPUS4-46204 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -