Abstract
This article reviews powder making methods involving the atomization of liquid metal, with particular reference to specialty alloys. The methods are classified as commercial, pilot-scale, and laboratory-scale. Powder characteristics and properties are considered in relation to process parameters; where available, mechanisms of the break-up of the liquid metal stream or sheet are analyzed.
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References
A. Lawley, “An Overview of Powder Atomization and Processes,” The Int. Journal of Powder Met. and Powder Tech. 13 (3) (1977) p. 169–188.
A. Lawley, “Preparation of Metal Powders,” Ann. Rev. Mater. Sci., Ann. Revs. Inc., (8) (1978) p. 49–71.
H. Lubanska, “Correlation of Spray Ring Data for Gas Atomization of Liquid Metals,” J. Metals 22 (2) (1970) p. 45–49.
C.F. Dixon, “Atomizing Molten Metals,” Can. Met. Quart. 12 (3) (1973) p. 309–322.
E. Klar and W.M. Shafer, Powder Metallurgy for High Performance Applications, edited by J.J. Burke and V. Weiss, New York, Syracuse Univ. Press, 1972, p. 57–68.
P.U. Gummeson, “Modern Atomizing Techniques,” Powder Met. 15 (1972) p. 67–94.
P. Rao, Shape and Other Properties of Gas Atomized Powders, Ph.D. Thesis, Drexel University, Philadelphia, Pennsylvania, 1973.
J.K. Beddow, The Production of Metal Powders, Heyden and Son, Ltd., Philadelphia, Pennsylvania, 1978.
S. Small and T.J. Bruce, “The Comparison of Characteristics of Water and Inert Gas Atomized Powders,” Int. J. Powder Metall. 4 (1973) p. 7–17.
P. Rao, R.G. Bowrey, and J.A. Tallmadge, Chemeca ’70, London, Butterworth, (1971) p. 1–16.
G.H. Johnston and J.B. See, “Formation of Liquid Metal Droplets,” Paper presented at Symp. on Process Eng. of Pyrometall., Imperial College, London, 1974.
J.B. See and G.H. Johnston, “Interactions Between Nitrogen Jets and Liquid Lead and Tin Streams,” Powder Tech. 21 (1978) p. 119–133.
J.B. See, J. Runkle, and T.B. King, “The Disintegration of Liquid Lead Streams by Nitrogen Jets,” Met. Trans. 4 (1973) p. 2669–2673.
N. Dombrowski and W.R. Johns, Chem. Eng. Sci. 18 (1963) p. 203–214.
D. Bradley, “On the Atomization of Liquids by High Velocity Gases I and II,” (1973) p. 1724–1736 and 2267–2272.
R.A. Castleman, Jr., Nat. Bur. Stand. J. Res. 6 (1931) p. 369–376.
J.M. Wentzell, “Metal Powder Production by Vacuum Atomization,” J. Vac. Sci. Technology 11 (6) (1974) p. 169–171.
L.P. Clark, “Powder Metallurgy Processes,” Advanced Manufacturing Methods and Their Economic Implications: Some Pilot Papers on Powder Metallurgy and Joining, AGARD Report #627 (1975) p. 1–18.
P. Lowenstein and D.R. Roberts, “Production of Titanium Alloy Powders by the Rotating Electrode Process,” Tri-Service Manufacturing Conference, September 1979, Orlando, Florida.
T.S. Daugherty, “Direct Roll Compacting Sheet from Particles,” Powder Met. 11 (22) (1968) p. 342–357.
H. Stephan, “Production of High Purity Metal Powders by Electron Beam Techniques,” Advanced Fabriction Techniques in Powder Metallurgy and Their Economic Implications, 42nd Meeting of the Structures and Materials Panel (AGARD), Ottawa, Canada, 1976, p. N77–15156.
P.W. Sutcliffe and P.H. Morton, “Titanium Powder Production by the Harwell Centrifugal Shot Casting Process,” see reference 21, p. N77–15157.
J. DeCours, J. Devillard, and G. Sainfort, “Production De Poudres D’Alliages De Titane Par Fusion — Centrifugation Sous-Vide,” see reference 21, 1976, p. N 77–15154.
A.R. Cox, J.B. Moore, and E.C. van Reuth, Proceedings of the 3rd International Conference on Superalloys, Claitor’s Pub. Div., 1976, p. 45–53.
N.J. Grant, “A Review of Various Atomization Processes,” Rapid Solidification Processing,” Edited by R. Mehrabian, B.H. Kear, and M. Cohen, Claitor’s Pub. Div., 1978, p. 230–245.
The Evaluation of Ti-6Al-6V-2Sn Pre-Alloyed Powder Processing, Westinghouse Electric Corporation Technical Report AFML-TR-76-65, 1975.
A.R.E. Singer and A.D. Roche, “Roller Atomization of Molten Metal for the Production of Powder,” Modern Developments in Powder Metallurgy, Edited by H.H. Hausner and P.W. Taubenblat, MPIF, Princeton, N.J., 1977, vol. 9, p. 127–140.
G. Matei, E. Bicsak, W.J. Huppman and H. Claussen, “Atomization of Metal Powders Using the Vibrating Electrode Method,” see reference 27, p. 153–159.
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Alan Lawley is professor of metallurgy In the Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania. He received his BSc (1955) and PhD (1958) degrees “ in metallurgy from the University of Birmingham, England. He has been a post doctoral fellow at the University of Pennsylvania, and manager of the Solid State Sciences Laboratory of the Franklin Institute. From 1969 to 1979 he was head of the Department of Materials Engineering at Drexel University. He has published over 100 technical papers and lectured extensively at universities, research laboratories, and conferences. Current areas of interest and research include powder metallurgy, composite materials, and engineering education. Dr. Lawley is a consultant to industry and the federal government, serves on scientific advisory boards and editorial boards, and is a member of several committees of TMS, ASM, and the American Powder Metallurgy Institute. He is a Fellow of ASM. Professor Lawley will be president of the Metallurgical Society of AIME in 1982.
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Lawley, A. Atomization of Specialty Alloy Powders. JOM 33, 13–18 (1981). https://doi.org/10.1007/BF03354395
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DOI: https://doi.org/10.1007/BF03354395