Abstract
An experimental study was conducted on the twin- wire electric arc spraying of aluminum coatings. This aluminum wire system is being used to fabricate heater tubes that emulate nuclear fuel tubes for use in thermal-hydraulic experiments. Experiments were conducted using a Taguchi fractional factorial design parametric study. Operating parameters were varied around the typical process parameters in a systematic design of experiments to display the range of processing conditions and their effect on the resultant coating. The coatings were characterized by hardness tests, optical metallography, and image analysis. This article discusses coating hardness, roughness, deposition efficiency, and microstructure. The study attempts to correlate the features of the coatings with the changes in operating parameters. A numerical model of the process is presented, including gas, droplet, and coating dynamics.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E.D. Kubel, Thermal Spray Technology: From Art to Science,Adv. Mater.Proc.,Vol 132(No. 6), 1987, p 69–80
E. Pfender, Fundamental Studies Associated with the Plasma Spray Process,Thermal Spray: Advances in Coatings Technology, D.L. Houck, Ed., ASM International, 1992, p 1–10
P. Fauchais, J.F. Coudert, A.M. Vardelle, A. Grimaud, and P. Roumilhac, State of the Art for the Understanding of the Physical Phenomena Involved in Plasma Spraying at Atmospheric Pressure,Thermal Spray: Advances in Coatings Technology, D.L. Houck, Ed., ASM International, 1992, p 11–21
T.J. Steeper, D.J. Varacalle, G.C. Wilson, A.J. Rotolico, J.E. Nerz, and W.L. Riggs, A Taguchi Experimental Design Study of Plasma Sprayed Alumina- Titania Coatings,J. Thermal Spray Technol, Vol 2 (No. 3), 1993,p251–256
T.J. Steeper, D.J. Varacalle, G.C. Wilson, and V.T. Berta, Use of Thermal Spray Processes to Fabricate Heater Tubes for Use in Thermal-Hydraulic Experiments,Thermal Spray Coatings: Properties, Processes, and Applications, I.V. Bernecki, Ed., ASM International, 1992, p 425–432
G. Taguchi and S. Konishi,Taguchi Methods: Orthogonal Arrays and Linear Graphs, ASI Press, 1987
R.F.Culp, SADIE, 1989
C.T. Crowe, M.P. Sharma, and D.E. Stock, The Particle-Source-In-Cell (PSI-Cell) Model for Gas-Droplet Flows,J. Fluids Eng., Vol 99(No.6), 1977, p 325–332
A.D. Gosman and E. Ioannides,Aspects of Computer Simulation of Liquid-Fueled Combustors, AIAA, AIAA-81-0323, Jan 1981
Q. Zhou and S.C. Yao,A Group Model for Particle Dispersion in Turbulent Sprays, Heat and Mass Transfer in Fires and Combustion Systems, HTD-148, ASME, 1990, p 27–32
A.D. Gosman and F.J.K. Ideriah, “TEACH—2E: A General Computer Program for Two-Dimensional, Turbulent, Recirculating Flows,≓ Department of Mechanical Engineering, Imperial College, London, 1976
D.J. Varacalle, and W.L. Riggs, Analytically Modeling the Plasma Spray Deposition of Tribaloy 800,Thermal Spray Coatings: Properties, Processes, and Applications, T.F. Bemecki, Ed., ASM International, 1992, p 245–250
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Varacalle, D.J., Wilson, G.C., Johnson, R.W. et al. A taguchi experimental design study of twin-wire electric arc sprayed aluminum coatings. JTST 3, 69–74 (1994). https://doi.org/10.1007/BF02649002
Issue Date:
DOI: https://doi.org/10.1007/BF02649002