Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1982-03-04
1984-04-17
Stallard, W.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
148 115P, B22F 904
Patent
active
044432496
ABSTRACT:
An improved process is provided for producing mechanically alloyed powders of simple and complex alloy systems. In the improved process, the mechanically alloyed powder is milled to an acceptable processing level in a gravity-dependent ball mill to obtain a powder characterized by a laminate-type microstructure which is substantially optically homogeneous at a magnification of 100.times.. Such acceptable processing level is reached without processing the powder to a featureless microstructure or to saturation hardness.
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A. Arias, "Production of Chromium Base Alloys by Ball Milling in Hydrogen Iodide", Metallurgical Transactions B, vol. 6B, pp. 631-640 (Dec. 1975).
J. S. Benjamin, "Mechanical Alloying", Scientific American, vol. 234, No. 5, pp. 40-48, (May 1976).
Inco Brochure: "IncoMAP Mechanically Alloyed Products for High Temperatures", insofar as attorney and applicants are aware 1st distributed at IncoMAP Conference May 1981.
Gilman Paul S.
Weber John H.
Huntington Alloys Inc.
Kenny Raymond J.
Leff Miriam W.
Stallard W.
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