Method of manufacturing ingots for use in making objects having

Details Method of manufacturing ingots for use in making objects having Method of manufacturing ingots for use in making objects having

1993-04-02

1995-01-10

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 48, 419 52, 419 44, 419 47, 419 57, 75255, 75252, 75253, B22F 314, B22F 100

Patent

active

053804821

ABSTRACT:
A method of manufacturing ingots for use in making objects having heat, thermal shock, corrosion and wear resistance by formulating a composition of about 17-80% TiB.sub.2 powder, about 0.0 to 4.0% Y.sub.2 O.sub.3 powder, and the balance of NiAl powder, the powders being thoroughly admixed, and placing the admixture into a mold in which it is subjected to a pressure of about 7000 psi and a temperature of about 1400.degree. C. for 20 to 140 minutes in an inert atmosphere, after which the mold is cooled and the ingot is removed and ready for use in manufacturing an object. In some applications the use of a ceramic filler material mixed with the powder is employed to improve the physical characteristics of the finished ingot.

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