Iron-bearing nickel-chromium-aluminum-yttrium alloy

Details Iron-bearing nickel-chromium-aluminum-yttrium alloy Iron-bearing nickel-chromium-aluminum-yttrium alloy

1982-05-24

1984-07-17

Dean, R.

Alloys or metallic compositions

Nickel base

Chromium containing

148410, 148428, C22C 1905

Patent

active

044605420

ABSTRACT:
A high temperature oxidation resistant alloy. The alloy consists essentially of, by weight, from 14 to 18% chromium, from 4 to 6% aluminum, from 1.5 to 8% iron, a small but effective yttrium content not exceeding 0.04%, up to 12% cobalt, up to 1% manganese, up to 1% molybdenum, up to 1% silicon, up to 0.25% carbon, up to 0.03% boron, up to 1% tungsten, up to 1% tantalum, up to 0.5% titanium, up to 0.5% hafnium, up to 0.5% rhenium, up to 0.04% of elements from the group consisting of elements 57 through 71 of the periodic table of the elements, balance essentially nickel. The nickel plus the cobalt content is at least 66%. The iron content is in accordance with the relationship, Fe .gtoreq.3+4 (%Al-5), when the aluminum content is at least 5%.

REFERENCES:
patent: 3017265 (1982-01-01), McGurty
patent: 3027252 (1962-03-01), McGurty
patent: 3754898 (1973-08-01), McGurty
patent: 3754902 (1973-08-01), Boone et al.
patent: 3832167 (1974-08-01), Shaw et al.
patent: 4086085 (1978-04-01), McGurty
patent: 4272289 (1981-06-01), Herchenroeder et al.
patent: 4312682 (1982-01-01), Herchenroeder

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