Powder metal alloy process

Details Powder metal alloy process Powder metal alloy process

1995-08-10

1998-11-10

Jenkins, Daniel J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75245, 75288, 75252, 428546, C22C 3302, C22C 3800

Patent

active

058346406

ABSTRACT:
This invention relates to a method or process of forming a sintered article of powder metal, and particularly relates to a process of forming a sintered article of powder metal by blending combinations of finely ground ferro alloys (either singly or in combination with other ferro alloys) with elemental iron powder and other additives and then high temperature sintering of the article in a reducing atmosphere to produce sintered parts with oxygen contents less than 250 parts per million (ppm). More particularly the ferro alloys admixed to the base iron have a mean particle size of approximately 8 to 12 microns, having previously been ground to size in an inert atmosphere.

REFERENCES:
patent: 4233073 (1980-11-01), Takemura
patent: 4393563 (1983-07-01), Smith
patent: 4422875 (1983-12-01), Nakata et al.
patent: 5082433 (1992-01-01), Keithner
patent: 5512236 (1996-04-01), Jones et al.
patent: 5516483 (1996-05-01), Shivanath et al.
patent: 5540883 (1996-07-01), Jones et al.

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