Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1997-03-19
1998-07-07
Mai, Ngoclan
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75231, 75243, 75252, 419 11, 419 38, 419 57, 419 58, C22C 3302, B22F 312
Patent
active
057772479
ABSTRACT:
Fine powders of iron with less than 5% by weight graphite, copper, and an organic binder can be formed into shapes having a green density of up to about 7.4 g/cc and sintered in a hydrogen containing atmosphere to yield parts having minimum variations in physical properties. Incorporation of small quantities of copper, e.g. 1% or less by weight, negates variations in physical properties of sintered parts that were subjected to variations in the hydrogen content of the sintering atmosphere.
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Berger Kerry Renard
Garg Diwakar
Marsden James Garfield
Air Products and Chemicals Inc.
Jones II Willard
Mai Ngoclan
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