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Microstructures of cemented carbides
Materials & Design, 2001Abstract An overview is given of the detailed microstructure of cemented carbides of types WC–Co and WC–MC–Co and of titanium carbo-nitride based cemented carbides (cermets). The manufacturing process is first descibed, and the changes in composition that occur during manufacturing are discussed.
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Cemented Carbide Quality Control
2015Abstract Quality control of cemented carbides includes the evaluation of physical and chemical properties of constituent raw material powders, powder blends/formulations, green compacts, and fully dense finished product. This article provides a summary of the underlying principles and size ranges for the American Society for Testing and ...
Gary Runyon, Binky Sargent
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Reinforcement of tungsten carbide grains by nanoprecipitates in cemented carbides
Nanotechnology, 2016In contrast to the conventional method that obtains a high fracture strength of tungsten carbide-cobalt (WC-Co) cemented carbides by reducing WC grain size to near-nano or nanoscale, a new approach has been developed to achieve ultrahigh fracture strength by strengthening the WC grains through precipitate reinforcement.
Xingwei, Liu +5 more
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Cemented Carbide Secondary Operations
2015Abstract This article describes the secondary operations for cemented carbide parts, namely, diamond grinding, honing, electrical discharge machining, and brazing after sintering to achieve desired results, such as specified size, shape, edge condition, and surface finish.
Thomas R. Shearer, Pankaj K. Mehrotra
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1998
AbstractCemented carbides belong to a class of hard, wear-resistant, refractory materials in which the hard carbide particles are bound together, or cemented, by a ductile metal binder. Cermet refers to a composite of a ceramic material with a metallic binder.
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AbstractCemented carbides belong to a class of hard, wear-resistant, refractory materials in which the hard carbide particles are bound together, or cemented, by a ductile metal binder. Cermet refers to a composite of a ceramic material with a metallic binder.
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Dust in the Cemented Carbide Industry
American Industrial Hygiene Association Journal, 1971The paper reports on the air concentrations of cobalt at typical operations in the cemented carbide (hard metal) industry. Such samples were obtained in seven different plants.
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Analysis of Microgram Tungsten Carbide-Cobalt Cemented Carbides
Proceedings, annual meeting, Electron Microscopy Society of America, 1976When small quantities of a grain growth inhibitor are added to starting powders containing submicron WC and Co, the sintered product is a high strength, high hardness alloy. The microstructure of the carbide is quite similar to that of the macrograin variety.
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