Results 301 to 310 of about 69,895 (322)
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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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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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Cold Sprayed Nanostructured WC-Co
International Thermal Spray Conference, 2001Abstract The cold spray process was used to prepare nanostructured WC-Co coatings. The coating microstructural characteristics and phase composition were analyzed via optical microscopy, SEM and XRD. The morphology and microstructure of the nanostructured WC-Co powder were also analyzed by SEM and XRD.
J. Karthikeyan +4 more
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Toughening in WC–Co composites
Philosophical Magazine A, 1985A toughening mechanism in composites, based on ligament zone formation behind the advancing crack front, is presented.
V. D. Krstic, M. Komac
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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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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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2011
Using results of thermodynamic researches, some features of formation of structure of composite WC???Co???diamond are considered. The special attention is turned on occurrence of stability of liquid layers in these materials.
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Using results of thermodynamic researches, some features of formation of structure of composite WC???Co???diamond are considered. The special attention is turned on occurrence of stability of liquid layers in these materials.
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?? ???????????????? ?????????????????????????????????????????? ?????????????? ?????????????? WC???Co
2014???????????????????? ?????????????????? ?????????????? ?????????????????????????? ???????????????????? WC ?? ?????????????????????????????????????????? ?????????????? ?????????????? WC???????. ????????????????, ?????? ???????????????????????? ???????????????????? ???????????????? ???? ?????????????????? ???????????????? ?????????????????????? ??????????
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Materials and Manufacturing Processes, 1989
ABSTRACT Operating conditions for maximum removal rate were established using a wire electrical discharge machine (EDM) with pulse type power supply. Material removal was primarily by vaporization and melting of cobalt followed by the dislodging of WC grains. The resolidified liquid smears the surface cracks and decreases the surface roughness.
A.M. Gadalla, W. Tsai
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ABSTRACT Operating conditions for maximum removal rate were established using a wire electrical discharge machine (EDM) with pulse type power supply. Material removal was primarily by vaporization and melting of cobalt followed by the dislodging of WC grains. The resolidified liquid smears the surface cracks and decreases the surface roughness.
A.M. Gadalla, W. Tsai
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2020
???? ???????????? ?????????????? ?????????????????????????? ?????????????????????? ???????????????????? ???????????????? ???????????????????????????? ??????????????, ?????? ???????????????? ?????????????? ???????????????????? ???????????????????????? ?? ?????????????????? ?????????????????? ?? ???????????? ????????????- ?? ???????????????????????? ?????
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???? ???????????? ?????????????? ?????????????????????????? ?????????????????????? ???????????????????? ???????????????? ???????????????????????????? ??????????????, ?????? ???????????????? ?????????????? ???????????????????? ???????????????????????? ?? ?????????????????? ?????????????????? ?? ???????????? ????????????- ?? ???????????????????????? ?????
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