Results 211 to 220 of about 57,825 (235)
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Mechanisms of plastic deformation of WC–Co and Ti(C, N)–WC–Co
International Journal of Refractory Metals and Hard Materials, 2006The deformation of the cutting edge of inserts made from WC–Co and Ti(C, N)–19%WC–Co upon radial turning was measured as a function of the cutting speed. Ab initio calculations of some grain boundary geometries in WC–Co indicated that Co segregates to WC/WC grain boundaries in submonolayer proportions and increases their strength and resistance to Co ...
Gustaf Östberg +7 more
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Effect of TaC on plastic deformation of WC–Co and Ti(C,N)–WC–Co
International Journal of Refractory Metals and Hard Materials, 2006The plastic deformation resistance of metal cutting inserts made from a WC–Co cemented carbide, a Ti(C, N)–WC–Co cermet and corresponding materials with additions of TaC has been studied. The cermets were produced with both high and low carbon activity, resulting in a total of six materials.
Gustaf Östberg +7 more
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Powder Metallurgy, 2002
Commercial tungsten carbide (WC) was coated with cobalt (Co) using a chemical precipitation technique. The coated powders were characterised for chemical composition and uniformity of coating. TEM and SEM were used to observe the nature of the cobalt coating on WC particles.
A. Sampath +4 more
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Commercial tungsten carbide (WC) was coated with cobalt (Co) using a chemical precipitation technique. The coated powders were characterised for chemical composition and uniformity of coating. TEM and SEM were used to observe the nature of the cobalt coating on WC particles.
A. Sampath +4 more
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Nanoindentation of WC–Co hardmetals
Journal of the European Ceramic Society, 2013Abstract WC–Co cemented carbide has been investigated using instrumented indentation with maximum applied loads from 0.1 to 10 mN. The hardness and indentation modulus of individual phases and the influence of crystallographic orientation of WC on the hardness and indentation modulus have been studied.
Annamaria Duszová +6 more
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Kinetics and oxidation behavior of laser clad WC-Co and Ni/WC-Co coatings
Ceramics International, 2018Abstract In this study, the oxidation behavior of WC-12Co and electroless Ni/WC-Co coatings is investigated by Thermogravimetric analysis (TGA), X-Ray Diffraction (XRD), and scanning electron microscope (SEM). Time dependence of weight gain showed a linear behavior for WC-Co coating and a parabolic-like behavior for Ni/WC-Co coating. This behavior is
Mohammad Erfanmanesh +3 more
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Metallurgical and Materials Transactions A, 1999
Hardness, fracture toughness, and wear resistance are strongly inter-related properties of cemented tungsten carbide. Higher hardness usually dictates higher wear resistance but at the cost of fracture toughness. A new dual composite of WC-Co, named DC carbide, is reported in this article.
Zhigang Fang +2 more
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Hardness, fracture toughness, and wear resistance are strongly inter-related properties of cemented tungsten carbide. Higher hardness usually dictates higher wear resistance but at the cost of fracture toughness. A new dual composite of WC-Co, named DC carbide, is reported in this article.
Zhigang Fang +2 more
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2013
An algorithm is described for the calculation of a conventional elastic limit for WC-Co alloy in compression taking into account residual thermal stresses in its phases. The algorithm is based on the equations of thermoelasticity of two-phase composites. Comparison of theoretical and experimental results points to their fair agreement.
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An algorithm is described for the calculation of a conventional elastic limit for WC-Co alloy in compression taking into account residual thermal stresses in its phases. The algorithm is based on the equations of thermoelasticity of two-phase composites. Comparison of theoretical and experimental results points to their fair agreement.
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2017
?????????????? ?????????????????? ?????????????????? CoSi???, NiSi???, CrSi??? ?? ?????????????????????? ?????????????WC???Co. ????????????????, ???? ?????????????????????? ???????????? ?? ?????? ???????????????????? ?? CoSi, SiC, CrSi, Cr???C???, Cr???C???, WSi???. ?????? ?????????????????? ???????????????????? ?????????????WC???Co ????????????????????
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?????????????? ?????????????????? ?????????????????? CoSi???, NiSi???, CrSi??? ?? ?????????????????????? ?????????????WC???Co. ????????????????, ???? ?????????????????????? ???????????? ?? ?????? ???????????????????? ?? CoSi, SiC, CrSi, Cr???C???, Cr???C???, WSi???. ?????? ?????????????????? ???????????????????? ?????????????WC???Co ????????????????????
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2014
???? ???????? ?????????????????????????????????? ?????????????? ???????????????? ????????????????, ???????????????????? ????????????????, ?????????????????? ???? ???????????? ???? ?????????????? ???????????? ???????????????????? ?????????????????????? ?????????????? ?????????????? ?? ????????????, ?? ?????????? ???????????????????? ?????????? ??????????
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???? ???????? ?????????????????????????????????? ?????????????? ???????????????? ????????????????, ???????????????????? ????????????????, ?????????????????? ???? ???????????? ???? ?????????????? ???????????? ???????????????????? ?????????????????????? ?????????????? ?????????????? ?? ????????????, ?? ?????????? ???????????????????? ?????????? ??????????
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Journal of Materials Processing Technology, 2005
Abstract The composite of tungsten carbide–cobalt (WC–Co) is a very important material used in carbide dies, cutting tools and components under erosion. The machining of this material is very difficult because of its very high hardness. Among conventional methods, this material can be machined with pendulum grinding method when special and expensive ...
R.A. Mahdavinejad, A. Mahdavinejad
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Abstract The composite of tungsten carbide–cobalt (WC–Co) is a very important material used in carbide dies, cutting tools and components under erosion. The machining of this material is very difficult because of its very high hardness. Among conventional methods, this material can be machined with pendulum grinding method when special and expensive ...
R.A. Mahdavinejad, A. Mahdavinejad
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