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high-velocity oxyfuel spraying

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Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 281-286, May 25–29, 1998,
...Abstract Abstract A tungsten carbide/cobalt hard coating was deposited on steel substrates using plasma-arc and high velocity oxyfuel flame (HVOF) spraying. The characteristics of the coatings made by the two spraying methods were evaluated under identical conditions. The microstructure...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 838-842, March 4–6, 2002,
.... The influence of both spray processes and parameters is examined. The layers are nitricated by using nitrogen as a secondary plasma gas. However, the embroidery occurred unevenly during the spraying. The high velocity oxyfuel layers show better corrosion and wear behavior than the plasma-sprayed layers. Paper...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1011-1015, May 8–11, 2000,
... porosity and cracking, and with low oxide levels is best achieved in metallic alloys using the high velocity oxyfuel (HVOF) spraying process. This article investigates the electrochemical corrosion behavior of HVOF sprayed coatings, covering coating preparation and characterization, immersion testing...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 861-866, May 25–29, 1998,
...Abstract Abstract Although high-velocity oxyfuel (HVOF) spray coating is a relatively new thermal spraying process, interest is growing rapidly along with the pace of development in areas such as torch design, powder quality, and modelling. The gases used in HVOF spraying are also important...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 63-68, May 25–29, 1998,
... spray coatings in terms of corrosion resistance is the focus of this paper. Two coating methods were studied: high-velocity oxyfuel (HVOF) and thermal spray-fused. The HVOF coating was WC-Co-Cr and the spray-fused coatings were WC-Co based and Ni-Cr-Si-B. Samples have been exposed to aqueous...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 732-740, May 24–28, 2021,
...Abstract Abstract High-velocity oxyfuel (HVOF) sprayed coatings of Cr3C2-NiCr containing solid lubricants such as nickel cladded graphite and hexagonal boron nitride were successfully developed and characterised with the aim of optimizing their friction and wear behaviour. HVOF technology...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 494-499, March 4–6, 2002,
... the conventional powder sprayed by means of a gas-operated burner produced the best coating. Paper includes a German-language abstract. high-velocity oxyfuel coating microstructure sliding wear tungsten carbide-cobalt coating wear resistance Thermal Spray 2002: Proceedings from the Copyright © 2002...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 991-997, May 8–11, 2000,
...Abstract Abstract Coatings have been prepared using the Diamond Jet hybrid and JP5000 high velocity oxyfuel (HVOF) systems with the objectives of improving corrosion resistance and reducing costs through increasing deposition efficiency. Models relating deposition efficiency, coating oxygen...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 83-90, September 15–18, 1997,
... for thermal spray coatings applied in the field. austenitic stainless steel cavitation damage cavitation resistance cobalt based alloys erosion damage high-velocity oxyfuel coating hydroelectric turbines plasma spraying pumps Thermal Spray: A United Forum for Scientific and Technological...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 303-308, May 8–11, 2000,
...Abstract Abstract This paper evaluates a wide range of thermal spray coatings for potential use lining cylinder bores in aluminum engines. Coatings were applied by atmospheric plasma spraying (APS) and high-velocity oxyfuel (HVOF) techniques. More than a dozen coating materials were screened...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1073-1078, May 25–29, 1998,
...Abstract Abstract High-velocity oxyfuel (HVOF) spraying is a viable alternative for hard chrome plating because of its excellent coating properties and substantially lower environmental pollution. Initial applications in ball valves, journals, and hydraulic cylinders on earthmoving equipment...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 257-261, October 7–11, 1996,
... is not changed during thermal spraying. corrosion resistance corrosion test heat resistance high-velocity oxyfuel spray coating polymer coatings polypenylene-sulphide Thermal Spray: Practical Solutions for Engineering Problems: Copyright © 1996 ASM International® Proceedings of the 9th National...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 351-354, May 8–11, 2000,
... tensile in the plasma sprayed coating to compressive in the HVOF one. Various stress generation mechanisms, including splat quenching, peening, and thermal mismatch, are discussed with respect to process parameters and material properties. high-velocity oxyfuel spraying neutron diffraction Ni-Al...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 743-750, September 15–18, 1997,
... that in high cycles fatigue, there are the coatings, in which damage is characterized by net-like fatigue cracks, and by linear fatigue cracks. coating damage fatigue testing high-velocity oxyfuel spray coating tungsten carbide cobalt Thermal Spray: A United Forum for Scientific and Technological...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1297-1301, May 8–11, 2000,
... specimens exhibited significantly higher fatigue lives compared to the uncoated specimens, and (iii) the as-coated specimen was cyclically stable. aluminum-copper-magnesium alloys high cycle fatigue high frequency pulse detonation high-velocity oxyfuel spraying WC-Co coatings Thermal Spray...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 199-205, May 25–29, 1998,
... and HVOF with other processes. It has been shown that thermal spray coatings, both APS and HVOF, can be used as chromium plating alternatives, with advantages in terms of wear resistance. atmospheric plasma spraying friction properties high-velocity oxyfuel spray coating wear resistance Thermal...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 858-862, March 4–6, 2002,
... are monitored by an DPV2000 optical system that enabled determination of the in-flight particles velocity and temperature. Paper includes a German-language abstract. hardness high-velocity oxyfuel spray coating microstructure particle analysis tungsten carbide-cobalt coatings Thermal Spray 2002...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 450-452, March 4–6, 2002,
.... With this equipment double exposure images of the flying particles were made and so their velocities and trajectories can be analysed. Paper text in German. arc spraying high-velocity oxyfuel spray coating nozzle configurations particle analysis particle image velocimetry Thermal Spray 2002: Proceedings...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 529-533, March 4–6, 2002,
... of Recent Work Part 2, J. C.Vaquero, High Frequency Pulse Detonation: Thermal Spray Technology, 1999, 8(2), p.301- Processing Parameters, E.Lugscheider and 314. P.A.Krammer, Eds., DVS-Verlag, 1999, p.726- 730. 4. V.V.Sobolev and J.M.Guilemany, Dynamic Proceses during High Velocity Oxyfuel Spraying...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 912-917, March 4–6, 2002,
...-language abstract. air permeability tester high-velocity oxyfuel spray coating inert gas fusion method oxygen content particle analysis porosity Thermal Spray 2002: Proceedings from the Copyright © 2002 Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH® International Thermal Spray...