TY - CONF A1 - Wäsche, Rolf A1 - Steinborn, Gabriele A1 - Woydt, Mathias T1 - Colloidal processing of metal bonded niobium carbide T2 - International Conference on Refractory Metals and Hard Materials N2 - Manufacturing of Niobium carbide cermets with nickel binder and different additions of titanium carbide has been realized by colloidal processing in aqueous environment. T2 - 19. Plansee Seminar CY - Reutte, Austria DA - 29.05.2017 KW - NbC KW - TiC KW - Ni KW - Colloidal processing KW - Gas pressure sintering KW - Hardness PY - 2017 SP - HM 135/1 EP - HM 135/11 AN - OPUS4-40596 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wägner, Yannick A1 - Binkowski, Sigrid A1 - Woydt, Mathias T1 - Charakterisierung von Hartstoffphasen in Gefüge T2 - Fortschritte in der Metallographie - Sonderbände der Praktischen Metallographie N2 - Der Beitrag handelt von der Verbesserung der Verschleißbeständigkeit von Hartstoffphasen in Metal Matrix Composites (MMC), Hartgusslegierungen, Hadfield-Stählen oder Werkzeugstählen. T2 - 15. International Metallographie-Tagung CY - Leoben, Asutria DA - 19.09.2018 KW - Verschleißbeständigkeit KW - Hartstoffphasen KW - NbC PY - 2018 SN - 978-3-88355-416-7 VL - 52 SP - 133 EP - 138 PB - DGM - INVENTUM GmbH CY - Sankt Augustin AN - OPUS4-46056 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. A1 - Vleugels, J. A1 - Huang, S. T1 - Potentials of niobium carbide (NbC) as cutting tools and for wear protection T2 - International Conference on Refractory Metals and Hard Materials N2 - The tool lifes of uncoated NiMo and NiMo2C-bonded stoichiometric NbC1.0 grades under dry turning 42CrMo4 and C45E were between +30 % to + 100 % higher and up compared to WC-6Co (fine grain). Niobium is today largely available. NbC grades displayed lower dry sliding friction over WC grades. T2 - 19. Plansee Seminar CY - Reutte, Austria DA - 29.05.2017 KW - Niobium carbide KW - Friction KW - Wear KW - NbC KW - Hard metal KW - Machining KW - Nickel PY - 2017 SP - HM 102/1 EP - HM 102/16 AN - OPUS4-40593 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - Friction and wear of binder-less niobium carbide JF - Wear N2 - The tribological profile of alumina (99.7%) mated against binder-less niobium carbide (NbC) rotating disks were determined unidirectional sliding tests (0.1–7.5 m/s; 22 °C and 400 °C) as well as in oscillation tests (f=20 Hz, Δx=0.2 mm, 2/50/98% rel. humidity, n=105/106 cycles) under un-lubricated (dry) conditions. In addition, the microstructure and mechanical properties of NbC were determined as well. The reason for testing hot-pressed NbC was to avoid side effects generated by sintering additives and/or second phases. The tribological data obtained were benchmarked with different ceramics, cermets and thermally sprayed coatings. NbC exhibited low wear rates under dry sliding associated with high load carrying capacity. The tribological profile established revealed a strong position of NbC under tribological considerations and for closed tribo-systems against traditional references, such as WC, Cr3C2, (Ti,Mo)(C,N), etc. KW - Sliding friction KW - Sliding wear KW - Ceramic KW - Coating KW - NbC PY - 2013 DO - https://doi.org/10.1016/j.wear.2013.07.013 SN - 0043-1648 VL - 306 IS - 1-2 SP - 126 EP - 130 PB - Elsevier B.V. CY - Amsterdam AN - OPUS4-28985 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - The use of niobium carbide (Nbc) for wear resistant tribosystems and the tribological backgrounds as cutting tools T2 - 9th International conference on tungsten, refractory & hardmaterials (Proceedings) N2 - The tribological profile of rotating disks made in binder-less niobium Carbide (hot-pressed NbC) and cobalt-bonded NbCs (NbC-8Co and NbC-12Co) mated against alumina (99.7%) were determined under unidirectional sliding tests (0.1 m/s to 8.0 m/s; 22°C and 400°C) as well as in oscillation tests (f= 20 Hz, Ax= 0.2 mm, 2/50/98% rel. humidity, n= 105/l 06 cycles) under unlubricated (dry) conditions. In addition, the microstructure and mechanical properties of HPNbCl and NbC bonded with 8 vol.-% and 12 vol.-% cobalt were determined as well. The tribological data obtained were benchmarked with different ceramics, cermets, hard metals and thermally sprayed coatings, where the NbCs bonded with 8% and 12% Co presented above 7 m/s the lowest wear rates so far in such a bench mark. HP-NbCl, NbC-8Co and NbC-12Co exhibited low wear rates under dry sliding associated with PV high load carrying capacities. The tribological profile established revealed a strong position of NbC bearing materials under tribological considerations and for closed tribo-systems against traditional references. T2 - 9th International conference on tungsten, refractory & hardmaterials CY - Orlando, FL, USA DA - 18.05.2014 KW - Friction KW - Wear KW - Ceramic KW - Oscillation KW - NbC KW - Niobium carbide KW - Cobalt KW - Hard metal KW - Strength KW - Sliding KW - Modulus KW - High temperatures PY - 2014 SN - 978-0-9853397-7-7 SP - 222 EP - 232 AN - OPUS4-31630 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - The tribological and mechanical properties of niobium carbides (NbC) bonded with cobalt of Fe3Al JF - Wear N2 - The tribological and mechanical properties of niobium carbide bonded with 8 vol.-% (NbC-8Co), 12 vol.-% of cobalt (NbC-12Co) or 12 vol.-% of Fe3Al (NbC-12Fe3Al) are presented. Rotating discs made of metal-bonded niobium carbide were mated against alumina (99.7%) under unlubricated (dry) unidirectional sliding tests (0.1 m/s to 12.0 m/s; 22 °C and 400 C) as well as in oscillation tests (f=20 Hz, Δx=0.2 mm, 2/50/98% rel. humidity, n=105/106 cycles). Microstructure and phase compositions were determined as well. The tribological data obtained were benchmarked with different ceramics, cermets, hard metals and thermally sprayed coatings, where NbC bonded with 8% and 12% Co presented above 7 m/s the lowest wear rates so far in such a benchmark. Binderless NbC (HP-NbC1) and the metal-bonded NbCs exhibited low wear rates under dry sliding associated with P·V high load carrying capacities. NbC-based hard metal bonded with 12 vol.-% of Fe3Al resulted in a higher hardness level than for 12 vol.-% cobalt. The tribological profile established revealed a strong position of NbC-bearing materials under tribological considerations and for closed tribosystems against established reference tribo-couples. KW - Sliding KW - Ceramic KW - Oscillation KW - Strength KW - Modulus KW - High temperatures KW - Friction KW - Wear KW - NbC KW - Niobium carbide KW - Cobalt KW - Fe3Al KW - Hard metal PY - 2014 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-316129 DO - https://doi.org/10.1016/j.wear.2014.09.007 SN - 0043-1648 VL - 321 SP - 1 EP - 7 PB - Elsevier CY - Amsterdam AN - OPUS4-31612 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - The background for the use of hardmetals and MMCs based on niobium carbide (NbC) as cutting tools and for wear resistant tribosystems T2 - Proceedings of the 3rd international conference on stone and concrete machining (ICSCM) N2 - In this present study, the mechanical properties (strength, hardness, moduli) and the dry sliding properties of stoichiometric and sub-stoichiometric NbC were compared. Microhardness and elastic properties of NbC depend from the C/Nb ratio, because the binary phase diagram Nb-C shows a region of homogeneity of NbCx of 0,72≤ x ≤1.0. At RT, hard metals of stoichiometric NbC have an elastic modulus E of ~440 GPa, those of substochiometric NbC0,88 an E of 405 GPa. The hot hardness of sub-stoichiometric NbC is above 600°C higher than of WC. The dry sliding wear resistance (0,1-7/10 m/s) of the present Fe3Al-NbC0,94 with ~61 vol.-% NbC as hard phase was close to those known of NbC-based hard metals. No grain pull-outs or fragmentations of the NbC grains were seen in the wear tracks of the Fe3Al-NbC composite (MMC), as a metallurgical interphase was formed between matrix and NbC grains. Stoichiometric and sub-stoichiometric niobium carbides have at RT and 400°C under dry sliding a prone intrinsic wear resistance more or less independent from sliding speed, either as hardmetal or as hard phase in metal matrix composite, associated with an exceptional high load carrying capacity. T2 - 3rd International Conference on Stone and Concrete Machining (ICSCM) CY - Bochum, Germany DA - 02.11.2015 KW - NbC KW - Niobium carbide KW - Cobalt KW - Fe3Al KW - Hardmetals KW - Metal matrix composite KW - Wear resistance KW - Cutting KW - Milling PY - 2015 SN - 978-3-943063-20-2 SP - 199 EP - 207 PB - Ruhr-Universität Bochum CY - Bochum AN - OPUS4-34846 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - The use of niobium carbide (NbC) as cutting tools and for wear resistant tribosystems JF - International journal of refractory metals & hard materials N2 - The tribological profile of alumina (99.7%) mated against rotating disks made in binder-less niobium carbide (NbC) and cobalt-bonded NbC were determined under unidirectional sliding tests (0.1 m/s to 8.0 m/s; 22 °C and 400 °C) as well as in oscillation tests (f = 20 Hz, Δx = 0.2 mm, 2/50/98% rel. humidity, n = 105/106 cycles) under unlubricated (dry) conditions. In addition, the microstructure and mechanical properties of binderless NbC and NbC bonded with 8% cobalt were determined as well. The reason for testing hot-pressed NbC was to avoid side effects generated by sintering additives and/or second phases. The tribological data obtained were benchmarked with different ceramics, cermets and thermally sprayed coatings. NbC and cobalt-bonded NbC exhibited low wear rates under dry sliding associated with high load carrying capacity. The tribological profile established revealed a strong position of NbC bearing materials under tribological considerations and for closed tribo-systems against traditional references, such as WC, Cr3C2 and (Ti,Mo)(C,N). KW - Sliding friction KW - Sliding wear KW - Ceramic KW - Oscillation KW - Coating KW - NbC KW - Niobium carbide KW - Hard metal KW - Cobalt PY - 2015 DO - https://doi.org/10.1016/j.ijrmhm.2014.07.002 SN - 0263-4368 SN - 0958-0611 VL - 49 SP - 212 EP - 218 PB - Elsevier AN - OPUS4-32896 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. ED - Gyekenyesi, A. ED - Halbig, M. T1 - Tribological background for the use of niobium carbide (NBC) as cutting tools and for wear resistant tribosystems T2 - 38th International conference on advanced ceramics and composites (Proceedings) N2 - The tribological profile of rotating disks made of binder-less niobium carbide (hot-pressed NbC) and cobalt-bonded NbC (NbC-8Co) mated against alumina (99.7%) were determined under unidirectional sliding tests (0.1 m/s to 8.0 m/s; 22°C and 400°C) as well as in oscillation tests (f= 20 Hz, Δx= 0.2 mm, 2/50/98% rel. humidity, n= 105/106 cycles) under un-lubricated (dry) conditions. In addition, the microstructure and mechanical properties of NbC and NbC bonded with 8% cobalt were determined as well. The tribological data obtained were benchmarked with different ceramics, cermets, hard metals and thermally sprayed coatings, where the NbC-8Co presented above 7 m/s the lowest wear rates so far in such a bench mark. NbC and NbC-8Co exhibited low wear rates under dry sliding associated with P·V high load carrying capacity. The tribological profile established revealed a strong position of NbC bearing materials under tribological considerations and for closed tribo-systems against traditional references. T2 - 38th International conference on advanced ceramics and composites CY - Daytona Beach, FL, USA DA - 26.01.2014 KW - Sliding friction KW - Wear KW - Ceramic KW - Oscillation KW - Coating KW - NbC KW - Niobium carbide KW - Cobalt KW - Hard metal PY - 2014 SP - Paper 1 EP - Paper 21 AN - OPUS4-32561 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - Niobcarbid - Ein vergessener Hartstoff für den Verschleißschutz in offenen und geschlossenen Tribosystemen JF - Tribologie und Schmierungstechnik N2 - Das tribologische Profil von binderlosem NbC und mit 8% bzw. mit 12% Cobalt oder 12% Fe3Al gebundenem NbC wird unter unidirektionaler Gleitreibung (v= 0,1-10 m/s, T= 22°C und 400°C) und unter oszillierender Gleitreibung vergleichend gegenüber Ingenieurkeramiken und Hartmetallen dargestellt. Zusätzlich werden die 4-Punkt-Biegebruchfestigkeit, elastische Eigenschaften (E,G) bis 1.000�C die lastabhängige Mikrohärte sowie die Phasenzusammensetzung und Gefügestrukturen vorgestellt. Die Verschleißkoeffizienten des binderlosen NbC lagen bei T unterhalb von 10-6 mm³/N?m, während diejenigen der cobaltgebundenen NbCs mit ansteigender Gleitgeschwindigkeit von 2-4 10-6 mm³/N?m bei 0,1 m/s auf 5-7 10-7 mm³/N.m bei 10 m/s abnahmen. Die Verschleißkoeffizienten bei 400°C lagen für die NbCs generell unterhalb von 10-6 mm³/N.m. Das tribologische Lasttragevermögen im Trockenlauf, ausgedrückt als PV-Wert, nimmt mit ansteigender Gleitgeschwindigkeit auf 100 W/mm² zu. Bedingt durch die geringe Löslichkeit von NbC in Legierungen offenbarten erste Zerspanversuche mit verschiedenen Stählen eine gegenüber WC-basierten Schneidstoffen signifikant angehobene Zerspanungsvolumina. Somit offenbart NbC in offenen und geschlossenen Tribosystemen Anwendungspotentiale. KW - Gleiten KW - Reibung KW - Verschleiß KW - Oszillation KW - NbC KW - Niobcarbid KW - Cobalt KW - Fe3Al KW - Hartmetall KW - Festigkeit KW - Hohe Temperaturen KW - Sliding KW - Friction KW - Wear KW - Oscillation KW - Niobium carbide KW - Hard metal KW - Strength KW - Modulus KW - High temperatures PY - 2015 SN - 0724-3472 VL - 62 IS - 3 SP - 5 EP - 13 PB - Expert Verlag CY - Renningen AN - OPUS4-33493 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Woydt, Mathias A1 - Huang, S. A1 - Vleugels, J. A1 - Mohrbacher, H. A1 - Cannizza, E. T1 - Potentials of niobium carbide (NbC) as cutting tools and for wear protection JF - International Journal of Refractory Metals & Hard Materials N2 - Research and development of WC grades is 90 years ahead of niobium carbide-based hard materials, which showed already as light-weight and unexplored material a very high potential for many technical applications, especially for wear protection and machining. NbC evoluted recently from lab scale to pilot scale, especially in areas where established WC-based materials are causing economic, environmental or technical concerns. Benchmark trials of NbC-based hard metals indicated already a favorable performance in machining of steel components. KW - Niobium carbide KW - Friction KW - Wear KW - NbC KW - Hard metals KW - Machining KW - Nickel PY - 2018 DO - https://doi.org/10.1016/j.ijrmhm.2018.01.009 SN - 0263-4368 VL - 72 SP - 380 EP - 387 PB - Elsevier Ltd. AN - OPUS4-44166 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Tribological profile of binderless and cobalt bonded niobium carbide T2 - Euro PM2013 Congress & Exhibition (Proceedings) N2 - The tribological profile of alumina (99.7%) mated against rotating disks in two niobium Carbide (NbC) grades were determined in unidirectional sliding tests (0.1 m/s to 7.5 m/s; 22°C and 400°C) as well as in oscillation tests (f= 20 Hz, Ax= 0.2 mm, 2/50/98% rel. humidity, n= 1062 c* y*c *l es) under unlubricated (dry) conditions. In addition, the microstructure and mechanical properties of NbC were determined as well. The reason for testing hot-pressed NbC was to avoid side effects generated by sintering additives and/or second phases. The tribological data obtained were benchmarked with different ceramics, cermets and thermally sprayed coatings. NbC exhibited low wear rates under dry sliding associated with high load carrying capacity. The tribological profile established revealed a strong Position of NbC under tribological considerations and for closed tribo-systems against traditional references, such as WC, Cr3C2, (Ti,Mo)(C,N), etc.. T2 - Euro PM2013 Congress & Exhibition CY - Gothenburg, Sweden DA - 15.09.2013 KW - Sliding friction KW - Sliding wear KW - Oscillation KW - Ceramic KW - Coating KW - NbC KW - Cobalt PY - 2013 SN - 978-1-899072-40-8 SP - 1 EP - 7 AN - OPUS4-29141 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - Adjusting the functional properties of niobium carbide N2 - The process window and range of functional properties of NbC is wide, because micro-hardness, hot hardness, sliding wear resistance, elastic modulus and toughness can be tailored by the C/Nb ratio, because Nb4C3, Nb6C5 and other short and long range ordered phases occur in the region of homogeneity of NbCx (0,75≤ x ≤1.0) in the binary Phase diagram, and by the type of binder. Further improvements enable the addition of secondary carbides. Supporting results from literature and different grades with varying C/Nb ratio or binder types were illuminated. Thus, the NbC system offers to producers a wider process window, than WC. The impact of these tailored properties on sliding wear and cutting performance was illuminated by tribological and machining results. NbC can be synthesized by carbothermal conversion of Nb2O5 or be metallurgically grown in melts and leached out as coarse NbC cubes. NbC provides comparably lower friction in many relevant tribo-contacts and displays low wear. NbC and Nb2O5 have so far no REACH classification related to human toxicology and are not listed as substances of very high concern contrary to WO3 and Co3O4. T2 - 2016 International Conference on Powder Metallurgy & Particulate Materials CY - Boston, MA, USA DA - 05.06.2016 KW - Niobium carbide KW - NbC KW - Wear KW - Friction PY - 2016 AN - OPUS4-36497 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. T1 - Cutting tool materials niobium carbide (NbC) substituting tungsten carbide and cermets N2 - The present paper illuminates the metallurgical progress on niobium carbide based hard metal developments, which are characterized by: a.) the substitution of cobalt binder by nickel, b.) the change from SPS to conventional sintering and c.) by switching from lab to pilot scale. The toughness was increased in the frame of these developments without loosening the hardness level. The hardness-toughness profile of NbC grades match those of WC and cermet grades. Apart from the aforementioned parameters, the properties depend from the powder processing and sintering conditions. The functional profile of nickel and NiMo bonded NbC versus cobalt bondedWC grades bonded by cobalt and nickel are benchmarked under dry sliding wear (T= 22/400°C; v= 0,1-10 m/s), abrasive wear (G65) and under dry turning and dry milling against different work piece alloys (C45E, 42CrMo4, 300WA, GG35, AlSi9Cu4Mg). The different elements explaining the wear resistance of NbC over WC will be illuminated. T2 - 73rd STLE Annual Meeting and Exhibition CY - Minneapolis, Minnesota, USA DA - 20.05.2018 KW - NbC KW - Cutting tool KW - Machining PY - 2018 AN - OPUS4-45852 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. T1 - Niobium carbide NbC as cutting tool material and for wear protection N2 - The present paper illuminates the metallurgical progress on niobium carbide based hard metal developments, which are characterized by: a.) the substitution of cobalt binder by nickel, b.) the change from SPS to conventional sintering and c.) by switching from lab to pilot scale. The toughness was increased in the frame of these develop¬ments without loosening the hardness level. Stoichiometric and sub-stoichiometric, submicron NbC powders were used. The hardness-toughness profile of NbC grades match those of WC and cermet grades. Apart from the aforementioned parameters, the properties depend from the powder processing and sintering conditions. The functional profile of NbC and WC grades bonded by cobalt and nickel are benchmarked by 4-point bending strength, elastic moduli and hot hardness until 1000°C, dry sliding wear (T= 22/400°C; v= 0,1-10 m/s), abrasive wear (G65) and cutting performances under emulsion and coolant-free turning and milling against different alloys (C60, 100Cr6, 42CrMo4, X90CrMoV18, 300WA, GG35). T2 - 42nd International Conference and Exposition on Advanced Ceramics and Composites CY - Daytona Beach, FL, USA DA - 21.01.2018 KW - NbC KW - Cutting tools KW - Wear PY - 2018 AN - OPUS4-45854 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias A1 - Mohrbacher, H. A1 - Vleugels, J. A1 - Huang, S. T1 - Status of nickel bonded niobium carbide (NbC) as a substitute for cobalt bonded tungsten carbide (WC) as cutting tools and for wear protection N2 - The research and developments on niobium carbide-based hard materials generated grades, which meet the application line for tungsten carbide and showed already a very high potential for many technical applications, especially for wear protection and machining. T2 - The 6th World Tribology Congress - WTC 2017 CY - Beijing, China DA - 17.09.2017 KW - Niobium carbide KW - NbC KW - Cutting tools PY - 2017 AN - OPUS4-42473 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias ED - Huang, S. ED - Vleugels, J. ED - Mohrbacher, H. T1 - Cutting tools and wear protection through nickel bonded niobium carbide (NbC) as a subtitute for cobalt bonded tungsten carbide (WC) T2 - WTC - 2017 N2 - The research and developments on niobium carbide-based hard materials generated grades, which meet the application line for tungsten carbide and showed already a very high potential for many technical applications, especially for wear protection and machining. T2 - The 6th World Tribology Congress - WTC 2017 CY - Beijing, China DA - 17.09.2017 KW - Cutting tools KW - Niobium carbide KW - NbC PY - 2017 SP - 1 EP - 4 AN - OPUS4-42474 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Machining with niobium carbide based tools N2 - The presentation deals about Niobium Carbide, its location, mine, products, uses, consumtion, and its tribological properties like micro-hardness, density and elastic-modulus. T2 - 59. Tribologie-Fachtagung 2018 CY - Göttingen, Germany DA - 24.09.2018 KW - Niobium carbide KW - NbC KW - Machining KW - Hardness PY - 2018 AN - OPUS4-46168 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Machining with niobium carbide based tools T2 - Reibung, Schmierung, Verschleiß N2 - The present work deals with Niobcarbid (NbC). Strategic reflections on tungsten carbide and more and more stringent toxicological restrictions for cobalt associated for both with spiraling stock market prices have attracted recently some attention for Niobium carbide as a substitute for tungsten carbide in machining. T2 - 59. Tribologie-Fachtagung CY - Goettingen, Germany DA - 24.09.2018 KW - Hard tungsten KW - Semi-finishing KW - Niobium carbide KW - Friction KW - Wear KW - NbC KW - Hard metal KW - Cobalt KW - Nickel KW - Fe3Al PY - 2018 SN - 978-3-9817451-3-9 SP - 48/1 EP - 48/11 AN - OPUS4-46170 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Woydt, Mathias T1 - Tailoring the functional profile of niobium carbide (NbC) as cutting tool materials and for wear protection N2 - The present work deals with Niobcarbid (NbC). Strategic reflections on tungsten carbide and more and more stringent toxicological restrictions for cobalt associated for both with spiraling stock market prices have attracted recently some attention for Niobium carbide as a substitute for tungsten carbide in machining. T2 - WORLDPM2018 CY - Beijing, China DA - 16.09.2018 KW - Niobium carbide KW - NbC KW - Machining KW - Hard turning KW - Cobalt KW - Nickel PY - 2018 AN - OPUS4-46198 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -