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ITSC2016, Thermal Spray 2016: Proceedings from the International Thermal Spray Conference, 121-126, May 10–12, 2016,
... Abstract This work introduces a hybrid spray-and-fuse process and a modified CoCrMoC (Stellite) alloy that significantly expand the manufacturing window for wear-resistant coatings. The Co-based alloy was produced by adding Ni, B, and Si to Stellite 720 to lower its melting points and expand...
Proceedings Papers

ITSC2016, Thermal Spray 2016: Proceedings from the International Thermal Spray Conference, 1132-1137, May 10–12, 2016,
... microstructure and porosity, especially in vacuum spraying. The fused and crushed powder yielded the densest coatings under the vacuum process conditions employed. fused and crushed powders hollow spherical powders in-flight particle velocity porosity vacuum plasma spraying yttria stabilized zirconia...
Proceedings Papers

ITSC 2015, Thermal Spray 2015: Proceedings from the International Thermal Spray Conference, 1031-1038, May 11–14, 2015,
...) the same W-WC top layer and an HVOF spray-and-fused Ni-W-Cr-B interlayer (Colmonoy 88 superalloy) applied to an Inconel 718 substrate. X-ray diffraction, energy dispersive spectroscopy, and scanning electron microscopy were used to analyze the microstructure of the coating layers. Microindentation was used...
Proceedings Papers

ITSC 2013, Thermal Spray 2013: Proceedings from the International Thermal Spray Conference, 85-90, May 13–15, 2013,
... Abstract This work examines the corrosion behavior of cobalt and nickel base coatings produced by APS and HVOF spraying. Laser fusing and sealing are also assessed for comparison as are the corrosion properties of tungsten carbide, chromium carbide, and chromium oxide. All coatings...
Proceedings Papers

ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 556-561, May 21–24, 2012,
... unique chemistries intended to function in different environments: 1) an Fe-based chemistry designed for metal to metal sliding wear resistance, 2) an Fe-based chemistry containing elevated refractory content intended specifically for spray and fuse applications to resist sulfurous corrosion, and 3) a Ni...
Proceedings Papers

ITSC 2011, Thermal Spray 2011: Proceedings from the International Thermal Spray Conference, 130-135, September 27–29, 2011,
... of such widespread use of NiCrBSi alloys in thermal spraying, their abrasive wear resistance is still not fully understood. In order to better understand, a series of sprayed and fused NiCrBSi coatings with hardness from 36 to 62 HRC were tested for abrasive wear according to ASTM G65–04 norm and the wear volumes...
Proceedings Papers

ITSC 2009, Thermal Spray 2009: Proceedings from the International Thermal Spray Conference, 51-55, May 4–7, 2009,
... Abstract Thermal conductivity of plasma-sprayed YSZ thermal barrier coatings depends on microstructure and significantly influences the effectiveness of the thermal barrier. In this study, YSZ coatings are deposited by plasma spraying using fused and crushed Y 2 O 3 -ZrO 2 powder. Coating...
Proceedings Papers

ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, 1011-1016, May 14–16, 2007,
... sprayed functional coatings applied as wear (and corrosion) protective layers. Examination of different optimized thermal spray coatings, i.e. HVOF sprayed WC/Co(Cr) and Cr 3 C 2 /NiCr coatings, conventional flame sprayed and fused self fluxing alloy coatings reinforced by hardmetal and APS sprayed oxide...
Proceedings Papers

ITSC 2005, Thermal Spray 2005: Proceedings from the International Thermal Spray Conference, 569-574, May 2–4, 2005,
... Abstract Calcium zirconate and magnesium zirconate prepared by synthesis and agglomeration were sprayed using a water stabilized plasma gun under varied spraying conditions. The same set of conditions was maintained during spraying of fused lime stabilized zirconia and magnesia stabilized...
Proceedings Papers

ITSC 2002, Thermal Spray 2002: Proceedings from the International Thermal Spray Conference, 890-893, March 4–6, 2002,
... Abstract This paper reports on a structural characterisation of the nickel alloy coatings, before and after the fuse process is done and the main phases in each case, showing important differences between the nickel alloy coatings. Spray and fuse process involves thermal spraying to apply...
Proceedings Papers

ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, 281-284, May 28–30, 2001,
... Abstract NiCrBSi spray and fuse types of coatings are routinely applied on various jobs where metallurgical bond of the coating to the substrate is desired. These coatings require a subsequent fusing operation at temperature of about 1050°C. In the present study NiCrBSi coatings were formed...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 95-100, May 25–29, 1998,
... results. Other atmospheric cold sprayed layers made of corrosion resistant Ni, Co, Cu or Fe base alloys have their limitations due to the process related discontinuities like pores and oxide films. In more aggressive environments thermal sprayed and fused layers made of so called self-fluxing Ni and Co...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 895-903, May 25–29, 1998,
... Abstract A simplified 1D model has been developed to calculate the temperature-time history of alumina layering splats. The splats were obtained by plasma spraying alumina fused-and-crushed particles onto steel substrates. The model correlates solidification time with splat layer thickness...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 911-916, May 25–29, 1998,
... flow ratios. This paper compares the continuous powder feeding characteristics of one type of feeding device for two different powder alloys fabricated by a representative set of powder processing methods, including spray dried, fused (cast) and crushed, and inert gas atomized. Powders were fabricated...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 199-202, September 15–18, 1997,
... Abstract Fusible Ni-B-Si alloys with a variety of alloy additions (Cr, Mo, Cu etc.) have been in service for many years as fused coatings with moderate corrosion resistance. Both gas- and water-atomised powders have been used with the spray and fuse and with the plasma transferred arc process...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 519-525, September 15–18, 1997,
... Abstract Fusible coatings of Nickel-Chromium alloys with various amounts of Boron and Silicon commonly used for severe load applications. The coating is normally sprayed, then fused by heating to the point of liquation. The fusing process causes powder coalescence and increases density...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 21-28, October 7–11, 1996,
... Abstract Spray and Fuse coatings are ideally suited to boiler environments. The fusing step gives to optimized coatings a uniform chemistry and microstructure, a metallurgical bonding, no through porosity, a low oxide content and no cracking. The relative simplicity of the traditional...