Solid-solution strengthened austenitic alloys

Details Solid-solution strengthened austenitic alloys Solid-solution strengthened austenitic alloys

1974-04-03

1976-02-10

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75171, C22C 1900

Patent

active

039376281

ABSTRACT:
Solid-solution strengthened austenitic alloys consisting of, in weight percent, no more than 0.1 % carbon, from 4 (%C) to 1 % titanium and/or niobium (alone or in combination), no more than 75 % cobalt, no more than 26 % chromium, from 8 % to 40 % tungsten, wherein the amount of 1/5 (%Co) + (%Cr) + (%W) is in the range from 38 % to 46 %, with or without at least one element from the group consisting of no more than 0.1 % boron, no more than 0.5 % zirconium, no more than 0.5 % yttrium and no more than 1 % hafnium, and the balance essentially nickel except for impurities.
These alloys possess excellent high-temperature strength as well as good workability.

REFERENCES:
patent: 2299871 (1942-10-01), Baird
patent: 2469718 (1949-05-01), Edlund et al.
patent: 2704250 (1955-03-01), Payson
patent: 3346378 (1967-10-01), Foster et al.
patent: 3362816 (1968-01-01), Winter et al.
patent: 3393999 (1968-07-01), Lherbier et al.

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