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Plasma-sprayed tungsten carbide/cobalt coating in as-received condition. Or...
Available to PurchasePublished: 01 August 2013
Fig. 1 Plasma-sprayed tungsten carbide/cobalt coating in as-received condition. Original magnification: 200×
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Image
Published: 01 August 2013
Fig. 2 Plasma-sprayed tungsten carbide/cobalt coating shown in Fig. 1 after repreparing (regrinding and repolishing). Original magnification: 200×
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Image
Published: 01 August 2013
Fig. 3 Plasma-sprayed tungsten carbide/cobalt coating shown in Fig. 2 after second regrind/repolish. Original magnification: 200×
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High-energy plasma-sprayed tungsten carbide/cobalt coating prepared similar...
Available to PurchasePublished: 01 August 2013
Fig. 4 High-energy plasma-sprayed tungsten carbide/cobalt coating prepared similarly to the coating shown in Fig. 2 . Original magnification: 200×
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High-energy plasma-sprayed tungsten carbide/cobalt coating prepared similar...
Available to PurchasePublished: 01 August 2013
Fig. 5 High-energy plasma-sprayed tungsten carbide/cobalt coating prepared similarly to the coating shown in Fig. 3 . Original nification: 200×
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High-velocity oxyfuel-sprayed tungsten carbide/cobalt coating prepared simi...
Available to PurchasePublished: 01 August 2013
Fig. 6 High-velocity oxyfuel-sprayed tungsten carbide/cobalt coating prepared similarly to the coating shown in Fig. 2 . Original magnification: 200×
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High-velocity oxyfuel-sprayed tungsten carbide/cobalt coating prepared simi...
Available to PurchasePublished: 01 August 2013
Fig. 7 High-velocity oxyfuel-sprayed tungsten carbide/cobalt coating prepared similarly to the coating shown in Fig. 3 . Original magnification: 200×
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Edge rounding of tungsten carbide/cobalt coating. Original magnification: 2...
Available to PurchasePublished: 01 August 2013
Image
Tungsten carbide/cobalt coating prepared with high-napped cloth, diamond ab...
Available to PurchasePublished: 01 August 2013
Fig. 38 Tungsten carbide/cobalt coating prepared with high-napped cloth, diamond abrasive, and water-based lubricant. Original magnification: 200×
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Tungsten carbide/cobalt coating prepared with high-napped cloth, diamond ab...
Available to PurchasePublished: 01 August 2013
Fig. 39 Tungsten carbide/cobalt coating prepared with high-napped cloth, diamond abrasive, and oil-based lubricant. Original magnification: 200×
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Image
Fine tungsten carbide/cobalt coating prepared using diamond. Original magni...
Available to PurchasePublished: 01 August 2013
Fig. 40 Fine tungsten carbide/cobalt coating prepared using diamond. Original magnification: 200×
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Fine tungsten carbide/cobalt coating prepared using colloidal silica. Origi...
Available to PurchasePublished: 01 August 2013
Fig. 41 Fine tungsten carbide/cobalt coating prepared using colloidal silica. Original magnification: 200×
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Coarse tungsten carbide/cobalt coating polished with 1 μm polycrystalline w...
Available to PurchasePublished: 01 August 2013
Fig. 42 Coarse tungsten carbide/cobalt coating polished with 1 μm polycrystalline water-based diamond suspension on a napless cloth for long times (>15 min) at 150 rpm, 35 kPa (5 psi) per 32 mm (1 1 4 in.) mount. Original magnification: 200×
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Image
Fine tungsten carbide/cobalt coating polished with 1 μm diamond suspension ...
Available to PurchasePublished: 01 August 2013
Fig. 43 Fine tungsten carbide/cobalt coating polished with 1 μm diamond suspension on a napless cloth at 150 rpm, 35 kPa (5 psi) per 32 mm (1 1 4 in.) mount for 2 min. Note that the apparent pores are associated with carbide or near-carbide fracturing. Original magnification: 500×
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Image
(a) High-velocity oxyfuel spraying of tungsten carbide/cobalt-chromium coat...
Available to PurchasePublished: 01 August 2013
Fig. 5 (a) High-velocity oxyfuel spraying of tungsten carbide/cobalt-chromium coating (WC/10Co4Cr) onto calendaring roll. Source: Ref 6 . (b) Typical finished roll after grinding and polishing. Used with permission of Sulzer Metco (U.S.) Inc.
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Image
Microstructure of a detonation gun deposited tungsten carbide/cobalt cermet...
Available to PurchasePublished: 01 January 1994
Fig. 13 Microstructure of a detonation gun deposited tungsten carbide/cobalt cermet coating. (a) As-polished. (b) Etched
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Isotropic distribution of tungsten carbide (WC) and cobalt in (a) high-coba...
Available to PurchasePublished: 30 September 2015
Fig. 1 Isotropic distribution of tungsten carbide (WC) and cobalt in (a) high-cobalt and (b) low-cobalt cemented carbide. (c) Microstructure of a cemented carbide with cubic carbides. (d) Fracture cross section of binderless nanograined carbide. SEM micrographs (a) and (b) courtesy of Jun Guo
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Book Chapter
Cemented Carbides and Cermets
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003152
EISBN: 978-1-62708-199-3
... the manufacture, composition, classifications, and physical and mechanical properties of cemented carbides. It describes the application of hard coatings to cemented carbides by physical or chemical vapor deposition (PVD or CVD). Tungsten carbide-cobalt alloys, submicron tungsten carbide-cobalt alloys, and alloys...
Abstract
Cemented 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. This article discusses the manufacture, composition, classifications, and physical and mechanical properties of cemented carbides. It describes the application of hard coatings to cemented carbides by physical or chemical vapor deposition (PVD or CVD). Tungsten carbide-cobalt alloys, submicron tungsten carbide-cobalt alloys, and alloys containing tungsten carbide, titanium carbide, and cobalt are used for machining applications. The article also provides an overview of cermets used in machining applications.
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001104
EISBN: 978-1-62708-162-7
... mechanisms and the methods available for holding the carbide tool. The article is limited to tungsten carbide cobalt-base materials. cemented carbides cutting tools cobalt-base materials machining applications mechanical properties nonmachining applications physical properties tungsten carbide...
Abstract
Cemented carbides belong to a class of hard, wear-resistant, refractory materials in which the hard carbide particles are bound together, or cemented, by a soft and ductile metal binder. The performance of cemented carbide as a cutting tool lies between that of tool steel and cermets. Almost 50% of the total production of cemented carbides is used for nonmetal cutting applications. Their properties also make them appropriate materials for structural components, including plungers, boring bars, powder compacting dies and punches, high-pressure dies and punches, and pulverizing hammers. This article discusses the manufacture, microstructure, composition, classifications, and physical and mechanical properties of cemented carbides, as well as their machining and nonmachining applications. It examines the relationship between the workpiece material, cutting tool and operational parameters, and provides suggestions to simplify the choice of cutting tool for a given machining application. It also examines new tool geometries, tailored substrates, and the application of thin, hard coatings to cemented carbides by chemical vapor deposition and physical vapor deposition. It discusses the tool wear mechanisms and the methods available for holding the carbide tool. The article is limited to tungsten carbide cobalt-base materials.
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006418
EISBN: 978-1-62708-192-4
... methods used in the production of cemented carbides, the physical and mechanical properties of carbides, and wear mechanisms encountered in service. Emphasis is placed on tungsten carbide-cobalt (WC-Co) or tungsten carbide-nickel (WC-Ni) materials as used in nonmachining applications. Nominal composition...
Abstract
Cemented carbides, best known for their superior wear resistance, have a range of industrial uses more diverse than that of any other powder metallurgy product including metalworking and mining tools and wear-resistant components. This article discusses raw materials and manufacturing methods used in the production of cemented carbides, the physical and mechanical properties of carbides, and wear mechanisms encountered in service. Emphasis is placed on tungsten carbide-cobalt (WC-Co) or tungsten carbide-nickel (WC-Ni) materials as used in nonmachining applications. Nominal composition and properties of representative cemented carbide grades and their applications are listed in a table.
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