Experimental analysis of surface integrity of cemented carbides resulting from contemporary sinking EDM technology
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DOI: 10.1007/s11740-019-00896-1
Abstract: The generator technology of electrical discharge machining (EDM) has evolved significantly over the last decades. This enabled EDM to become a crucial technology in die and mold manufacturing. Moreover, EDM became a more important technology… read more here.
Keywords: sinking edm; cemented carbides; edm technology; technology ... See more keywords
Microstructure and properties of coarse-grained WC–10Co cemented carbides with different carbon contents during heat treatments
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DOI: 10.1007/s12598-019-01276-5
Abstract: The effects of cryogenic treatment (CT) and tempering-cryogenic treatment (TCT) on the microstructure and properties of coarse-grained WC–10Co cemented carbides with different carbon contents were researched. The binder phase, WC mean grain sizes, W solubility… read more here.
Keywords: heat treatments; cemented carbides; carbides different; microstructure properties ... See more keywords
Microstructure and mechanical properties improvements in cemented carbides by (Cr,Mo,Ta)2(C,N) inhibitors
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DOI: 10.1007/s12598-019-01343-x
Abstract: Grain growth inhibitors can effectively suppress the grain size of tungsten carbide (WC), and consequently improve the hardness and strength of the cemented carbides; however, the toughness, one of the most important properties, usually deteriorates… read more here.
Keywords: improvements cemented; microstructure mechanical; cemented carbides; carbides inhibitors ... See more keywords
Complexions and grain growth retardation: First-principles modeling of phase boundaries in WC-Co cemented carbides at elevated temperatures
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DOI: 10.1016/j.actamat.2021.117128
Abstract: WC-Co cemented carbides combine superb hardness with high toughness making them ideal for usage in metal machining and in wear resistant tools. Controlling the WC grain size is important during sintering as grain size plays… read more here.
Keywords: growth; cemented carbides; first principles; complexions grain ... See more keywords
Oscillatory pressure sintering of WC-Fe-Ni cemented carbides
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DOI: 10.1016/j.ceramint.2020.02.040
Abstract: Abstract WC-Fe-Ni cemented carbide was prepared by oscillatory pressure sintering (OPS) technique for the first time. Compared to HP, OPS can significantly improve densification and suppress grain growth of the material. The samples prepared by… read more here.
Keywords: sintering cemented; cemented carbides; pressure sintering; oscillatory pressure ... See more keywords
Interplay of microstructure and mechanical properties of WC-6Co cemented carbides by hot oscillating pressing method
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DOI: 10.1016/j.ceramint.2021.04.063
Abstract: Abstract The WC-6Co cemented carbides were sintered using hot oscillating pressing (HOP) method. The interplay of sintering parameters between microstructure and mechanical properties were systematically investigated. Results revealed that HOP could enhance the densification, restrain… read more here.
Keywords: 6co cemented; oscillating pressing; microstructure mechanical; hot oscillating ... See more keywords
Fabrication of ultrafine-grained ZrC–Co cemented carbides with superior sliding-wear resistance from micrometre starting powders
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DOI: 10.1016/j.ceramint.2021.05.209
Abstract: Abstract An ultrahard ZrC–Co cemented carbide was fabricated by high-energy ball-milling (HEBM) of micrometric starting powders and spark plasma sintering (SPS), whose ultrafine-grained microstructure makes it comparatively more sliding-wear resistant. First, it is shown that… read more here.
Keywords: starting powders; cemented carbides; ultrafine grained; sliding wear ... See more keywords
Microstructure, mechanical properties, and cutting performances of WC-Co cemented carbides with Ru additions
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DOI: 10.1016/j.ceramint.2021.06.011
Abstract: Abstract In this study, the microstructure, mechanical properties, and cutting performance of WC-8Co cemented carbide with different Ru additions were studied in detail. The results show that Ru can inhibit the abnormal growth of WC… read more here.
Keywords: cemented carbide; microstructure mechanical; mechanical properties; cemented carbides ... See more keywords
Effect of sintering temperature on microstructural evolution of M48 high speed tool steel bonded NbC matrix cemented carbides sintered in inert atmosphere
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DOI: 10.1016/j.ijrmhm.2018.02.021
Abstract: Abstract This work presents the results on microstructure and hardness evaluation of NbC-12 wt% M48 high speed steel (HSS) cemented carbides, pressureless sintered at different temperatures in argon atmosphere. To evaluate the effect of sintering process on… read more here.
Keywords: effect sintering; cemented carbides; m48 high; speed ... See more keywords
A systematic study of the effect of calcium on the production and properties of WC precursor powders and alloys
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DOI: 10.1016/j.ijrmhm.2018.03.002
Abstract: Abstract Effect of calcium on tungsten oxide, tungsten, tungsten carbide and WC-Co cemented carbides, and the evolution of Ca during the preparation of cemented carbides were investigated studied by the liquid-solid doping method. X-ray diffraction,… read more here.
Keywords: effect calcium; systematic study; cemented carbides; microscopy ... See more keywords
Sintering behavior and mechanical properties of Cr3C2 doped ultra-fine WC-Co cemented carbides: Experment guided with thermodynamic calculations
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DOI: 10.1016/j.ijrmhm.2018.09.014
Abstract: Abstract The influence of Cr3C2 doping on the sintering process and mechanical properties of WC-Co cemented carbides was studied. Using differential thermal analysis of green powders and thermodynamic calculations, the disappearing temperature of solid-state binder… read more here.
Keywords: thermodynamic calculations; cr3c2 doped; mechanical properties; cemented carbides ... See more keywords