Summary
The direct powder-rolling process has the potential to provide strip/sheet/foil products from a wide variety of unique powder metallurgy alloys. Alloy powder particles are directly roll-compacted to form strip or sheet of near-final thickness. Subsequent heat treatment and rolling produces material which has properties equivalent to those of the ingot metallurgy (I/M) counterpart. Following a general review of the process, microstructures of powder and roll-compacted material, and their relationship to properties, are discussed.
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References
Michael L. MacKay, “Innovation in Powder Metallurgy: An Engine Bearing Material,” Metal Progress, June 1977.
David H. Ro, “Direct Rolling of Aluminum Powder Metal Strip,” Air Force Contract F 33615-80-C-5161, Final Report, March, 1982.
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Ro, D.H., Toaz, M.W. & Moxson, V.S. The Direct Powder-Rolling Process for Producing Thin Metal Strip. JOM 35, 34–39 (1983). https://doi.org/10.1007/BF03338182
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DOI: https://doi.org/10.1007/BF03338182