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rapid solidification

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Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 635-643, September 15–18, 1997,
... Abstract A numerical model has been developed to study the rapid solidification of an alumina splat in thermal spray deposition. The model focuses on the melt undercooling, the selection of the various phases of Al 2 O 3 , and the subsequent non-equilibrium rapid solidification process. A thin...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 135-139, May 8–11, 2000,
...-controlling mechanisms with controlling parameters as the temperature of the particle surface, and local oxygen concentration and flow field surrounding the particle. The deposition of molten particle and its rapid solidification and deformation is treated using a Madejski-type model, in which the mechanical...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 717-721, September 15–18, 1997,
... little research into the physical processes occurring during HVOF spraying of this system, such as carbide dissolution, liquid-metallic phase oxidation, decarburisation and rapid solidification. The purpose of the present work has been to perform a systematic characterisation of the chromium carbide...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 401-406, May 25–29, 1998,
... to some type of deterrent to liquid flow, such as poor wettability at the flow tip or initial rapid solidification of the splat. The drastic change of the splat pattern near the transition temperature seems to occur when the Weber number of the liquid flow coincides with some critical value. Auger...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 539-550, May 25–29, 1998,
... in the study and coatings development in each class is described. These include coatings developed to take advantage of the microstructure due to rapid solidification, such as amorphous and extension of solid state solubility, and characterization of porosity and how it is affected by process parameters...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 379-385, October 7–11, 1996,
... materials, low silicides, Mo 5 Si 3 and Mo 3 Si, and free Si were observed. The formation of these phases are explained in terms of metastable eutectic reaction during rapid solidification processing. The relationship between the quantities of all these phases and the experimental conditions has been...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 122-130, May 24–28, 2021,
... of coating was studied. The morphology and structure of the feedstock powders were affected by the exposure to high temperature during the spraying process and rapid solidification of steel powders that resulted in the formation of an amorphous structure. The unreinforced steel coating had the highest...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 416-421, May 24–28, 2021,
... high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) sprayed coatings of the alloy AlCrFeCoNi are investigated. A metastable bcc structure is formed in both coating processes. Precipitation reactions are suppressed by the rapid solidification during atomization and by the relatively low...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 871-880, May 8–11, 2000,
... powders. The spheroidized powder were obtained by high energy ball milling and rapid solidification from the molten state during plasma spraying. The article discusses the processes involved in spray drying and plasma spheroidization, describing thermal analysis and mullitization kinetics...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1205-1210, May 25–29, 1998,
... and advantages for the rapid fabrication of complex metal components, an examination of the microstructural development hhas been performed in order to define and optimize the processed materials. Solidification studies of DLF processing have demonstrated that a continuous liquid/solid interface is maintained...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 195-201, May 8–11, 2000,
.... The substrate temperature on the droplet solidification rate and model accounts for the rapid solidification including the non- temperature of the droplet under the condition when the equilibrium kinetics and thermal contact resistance between the substrate can melt and re-solidify. Two-dimensional simulations...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 807-811, October 7–11, 1996,
.... A significant criterion High speed camera for the quality of sprayed films is their adhesion to the substrate. The coatingis built up particleby particle. Molten Computer (image analysis) particles undergo severedeformation and rapid solidification when they impinge on the substrate. The results of tensile Fig...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1061-1066, May 8–11, 2000,
... improvements in plasma sprayed coating consists of layers of splats efficiency, and to reduce requirements for cooling. created by rapid solidification of molten or Control of thermal conductivity is addressed since semimolten particles, first on the substrate, and then low thermal conductivity depends...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1327-1331, May 25–29, 1998,
... material solidities. Its thickness is connected with the time passed, when appropriate solidification conditions are kept. Rapid flow of 4. Maciejny A., Swadzba L., Formanek B., Mendala B.: heat from liquid through solidified layer to material core Materials for Advanced Power Engineering 1994, Fifth...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 735-740, May 25–29, 1998,
... the microstructure and properties development. IT IS WIDELY appreciated that thermal spraying is a highly dynamic process resulting from rapid heating /accelerating of Material and experimental methods powder particles in a flame, followed by impact and rapid solidification of the droplet (splat). A splat resulting...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 187-192, May 25–29, 1998,
... thermally activated reactions between WC and the Co or Co-Cr matrix, respec- The paper reports a series of experiments with various tively [1-3]. Furthermore rapid solidification of the super- HVOF spray systems (Jet Kote, Top Gun, Diamond Jet (DJ) saturated Co (W, C) matrix can cause the formation...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 467-472, May 25–29, 1998,
.... There The observations regarding cooling rates during splat appears to be an increase in splat size with the higher Al formaion are somewhat in conflict with results reported by content powders. This may be due to slightly differing Dubois et al. (3). They demonstrated that the most rapid solidification paths owing...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 589-596, May 8–11, 2000,
... the sprayed structure. This strongly influenced positively the coatings [2, 3, 4]. Rapid solidification inherent to laser performance of the laser remelted coatings in adhesion, wet treated surfaces results in coatings with a columnar and corrosion and high temperature oxidations test. The dendritic...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 729-734, May 25–29, 1998,
...). Denoirjean for his assistance in splat observation with the atomic force microscope. 17 Robert, C., A. Vardelle, G.x. Wang, S. Sampath, References Analysis of Nucleation, Phase Selection and Rapid Solidification of an Alumina Splat, to be published in Bennett, T. and C. Poulikakos, J. of Materials...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1105-1116, May 8–11, 2000,
... International, Materials 15. F.H. Frees, "Metals and Metals Park, Ohio, 297-302 (1993) Processing," J. Of Metals, Nov. 1987, 28 29 16. A.M. Johnson, J.S. Kelm, R.W. Smashey, D.V. Rigney, and T.G. Wakeman, "Aircraft Engine Gas Turbine Component Fabrication Concepts Using RSPD," Rapid Solidification Processing...