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ITSC2023, Thermal Spray 2023: Proceedings from the International Thermal Spray Conference, 112-118, May 22–25, 2023,
... complex oxides and tungsten phases in coatings deposited technologies involving melting of powders such as HVOF and HVAF. These phases consisted mainly of cobalt oxides and brittle phases such as W 3 Co 3 C or W 2 C caused by decarburization of the tungsten carbide particles. Hardness of all coating...
Proceedings Papers

ITSC 2022, Thermal Spray 2022: Proceedings from the International Thermal Spray Conference, 763-772, May 4–6, 2022,
... Abstract This study investigates the solid particle erosion performance of cold sprayed tungsten carbide-nickel coatings using alumina particles as erodent material. After coating fabrication, specimens were annealed in an electric furnace at a temperature of 600 °C for 1 hour. The coatings...
Proceedings Papers

ITSC 2019, Thermal Spray 2019: Proceedings from the International Thermal Spray Conference, 484-490, May 26–29, 2019,
... of the matrix, increased interfacial area, smaller average carbide size, and reduced mean free path between carbide particles. coating porosity low-pressure cold spraying mean free path particle size tensile strength tungsten carbide-nickel matrix composite coatings ITSC 2019 Proceedings...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 47-53, May 7–10, 2018,
...) Tungsten Carbide coating can help reduce oil leakage from gearboxes and actuators and increase maintenance intervals. The coating protects metal pistons and shafts from abrasion and corrosion, keeping their surface roughness parameters within optimum ranges for longer; this reduces seal wear and makes...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 752-758, May 7–10, 2018,
... was controlled by toughness for 30° and higher hardness for 60° of impact angle. abrasion resistance erosion resistance hardness high-velocity oxyfuel spraying porosity residual stress analysis tungsten carbide-cobalt coating ITSC 2018 Proceedings of the International Thermal Spray Conference May...
Proceedings Papers

ITSC 2017, Thermal Spray 2017: Proceedings from the International Thermal Spray Conference, 360-363, June 7–9, 2017,
... Abstract For most HVOF sprayed tungsten carbide coatings powders with identical particle-size distributions and compositions are interchangeable, within the meaning that as long as the manufacturing process is identical other properties are nearly irrelevant. In plastic foil industry often...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 76-86, May 11–14, 2015,
... to this problem is in high demand especially for the moving blades of gas turbines’ compressors and those operating at the low-pressure (LP) end of steam turbines. Thermal sprayed tungsten carbide based coatings have been the focus of many studies and are industrially accepted for a multitude of wear and erosion...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 236-240, May 11–14, 2015,
... Abstract Tungsten carbide coatings are often applied to improve surface properties such as wear, high temperature degradation, and corrosion resistance. Zirconia coatings have also been used extensively in various industries due to their excellent tribological and insulation properties combined...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 345-352, May 11–14, 2015,
... Abstract Metal-matrix composite (MMC) coatings consisting of a nickel based metal matrix, providing toughness and tungsten carbides, providing wear resistance, are used in applications subjected to severe abrasive wear conditions. The aim of this work is to map the influence of type, morphology...
Proceedings Papers

ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 506-511, May 13–15, 2013,
... Abstract This paper presents the results of a preliminary study comparing high-velocity oxyfuel and airfuel spraying for the deposition of tungsten carbide coatings as an alternative to electrolytic hard chrome plating. Two tungsten carbide powders with a Co matrix and two with a Co-Cr matrix...
Proceedings Papers

ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 190-193, May 21–24, 2012,
... Abstract Typically, standard alloys do not have the wear resistance properties necessary to combat the aggressive wear and corrosive conditions prevalent throughout the oil sands mining process. For production-critical components, it is common to apply tungsten carbide-based metal matrix...
Proceedings Papers

ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 535-539, May 21–24, 2012,
... of tungsten carbide-based coatings by HVOF spraying. A number of commercial nanostructured coatings have been developed for this type of application. In this study, results will be presented that assess the effects of using a nanostructured tungsten carbide-based powder on the mechanical and wear-resistant...
Proceedings Papers

ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 540-543, May 21–24, 2012,
... tungsten carbide and chromium carbide reduces this problem. Cemented carbides are quite suitable for this purpose: they are composite materials of pure carbides with binder metal alloys of low melting point and high ductility; the selection of the binder metals depends mostly on its ability to wet...
Proceedings Papers

ITSC 2011, Thermal Spray 2011: Proceedings from the International Thermal Spray Conference, 152-156, September 27–29, 2011,
... protection composed of a stainless steel matrix and inclusions of tungsten carbide (WC) nanoparticles were developed. To built-up the coatings, two precursors were injected separately in the plasma jet : a stainless steel micrometric powder was classically injected into the plasma jet using a carrier gas...
Proceedings Papers

ITSC 2011, Thermal Spray 2011: Proceedings from the International Thermal Spray Conference, 157-161, September 27–29, 2011,
...-carbide-10% cobalt- 4% chromium (WC-10Co-4Cr) and tungsten-carbide- 12% cobalt (WC-12Co) materials are examined. Thermal spray coatings are produced of carbides of several different grain sizes using high velocity oxygen-fuel (HVOF) thermal spray processing. Spark Plasma Sintering (SPS) is performed...
Proceedings Papers

ITSC 2010, Thermal Spray 2010: Proceedings from the International Thermal Spray Conference, 42-48, May 3–5, 2010,
.... The quality of the mathematic model was scrutinized in a subsequent evaluation stage. atmospheric plasma spraying deposition efficiency design of experiments microstructure porosity powder feed rate roughness tensile strength tungsten carbide-cobalt coating International Thermal Spray...
Proceedings Papers

ITSC 2010, Thermal Spray 2010: Proceedings from the International Thermal Spray Conference, 266-271, May 3–5, 2010,
... samples obtained by spark plasma sintering from the feedstock powder were studied for comparison. coefficient of thermal expansion heat conductivity high-velocity oxyfuel spraying phase composition spark plasma sintering specific heat capacity thermal diffusivity tungsten carbide-cobalt...
Proceedings Papers

ITSC 2009, Thermal Spray 2009: Proceedings from the International Thermal Spray Conference, 1052-1055, May 4–7, 2009,
... Abstract This study investigates the tribological properties of two HVOF-sprayed tungsten carbide coatings, each with a different content of cobalt, which were subjected to electrical discharge machining (EDM). It was found that the electrospark deposition of WC8Co over the HVOF-sprayed WC12Co...
Proceedings Papers

ITSC 2008, Thermal Spray 2008: Proceedings from the International Thermal Spray Conference, 664-669, June 2–4, 2008,
... Abstract Tungsten carbide – cobalt powders (WC-17wt.%Co) were plasma sprayed by a water-stabilized system WSP. A matrix of experiments with variable feeding distances and spray distances was carried out. Thinner coatings were carried out on carbon steel substrates and thicker coatings...
Proceedings Papers

ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, 776-781, May 14–16, 2007,
... mapping of in-flight particle velocity and temperature characteristics to optimize tungsten carbide (WC) coatings sprayed with a High Velocity Plasma torch (HVP). Key performance factors of WC coatings include high inherent hardness, low porosity and neutral to compressive stress conditions...