Production of nitride dispersion strengthened alloys

Details Production of nitride dispersion strengthened alloys Production of nitride dispersion strengthened alloys

1986-10-27

1987-11-24

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

75244, 419 13, 419 32, 419 34, 419 48, 419 49, 419 67, 419 68, B22F 100

Patent

active

047087420

ABSTRACT:
Nitride dispersion strengthening of stainless steel or nickel-based alloys is achieved by mechanically alloying the constituents of the alloy together with a nitride former, such as titanium, and a nitrogen donor, such as chromium nitride, and heating the mechanically alloyed powder to dissociate the donor and combine the resulting nitride with the nitride former. The heating step may be carried out in the course of hot consolidating the powder, e.g. by extrusion.

REFERENCES:
patent: 3992161 (1976-11-01), Cairns et al.
patent: 4557893 (1985-12-01), Jatkar et al.
patent: 4582679 (1986-04-01), Wilson
patent: 4623388 (1986-11-01), Jatkar et al.

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