Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1973-04-18
1976-08-17
Schafer, Richard E.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
294205, 75200, 75224, 75226, 148126, B22F 100, B22F 316
Patent
active
039751937
ABSTRACT:
A powder metallurgy process for producing stainless steel stock. The process utilizes readily available, inexpensive, oxygen- and carbon-bearing raw materials and yields stainless steel stock of high purity with a low level of interstitials. After determining the degree of homogeneity desired, the process consists of providing an alloy composition from a particle mass comprising iron, chromium- and/or nickel-bearing powders containing oxygen and carbon, purifying the particle mass in an uncompacted condition in order to obtain a coherent porous compact with a desired purity level and then hot working the compact to produce a homogeneous and densified product. The properties of the product produced by this process are comparable to properties of a wrought product of similar chemical composition.
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Airco, Inc.
Bopp Edmund W.
Mathews H. Hume
Rae David L.
Schafer Richard E.
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