TY - GEN A1 - Woydt, Mathias T1 - Substituting tungsten carbide (WC) as cutting tools and for wear protection by niobium carbide (NbC) N2 - As a refractory carbide, niobium carbide (NbC) is today still a forgotten carbide with hidden properties, such as wear resistance, thus qualifying NbC for the group of tribological materials with enhanced wear resistance. Several phases, like 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, which enable the tailoring of properties and offers a much wider process window than known from WC. The type binder (Co, Ni, NiMo) and its concentration as well as the sintering process (SPS, liquid phase sintering) determine the box “hardness-toughness”, which will be illuminated based on more than 100 grades. The impact of these tailored properties on sliding wear (T= 22/400°C; v= 0,1-10 m/s) and cutting performance will be illuminated by tribological and machining results. Cutting test results under emulsion and coolant-free operation of cobalt and Fe3Al bonded, straight NbC versus WC based inserts against different alloys (C60, 100Cr6, 42CrMo4, X90CrMoV18, 300WA, GG35) will be highlighted. T2 - STLE 2016 Annual Meeting and Exhibition CY - Las Vegas, NV, USA DA - 15.05.2016 KW - Niobium Carbide (NbC) KW - Friction KW - Wear PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/36152 AN - OPUS4-36152 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany