Cast columnar grain hollow nickel base alloy articles and alloy

Details Cast columnar grain hollow nickel base alloy articles and alloy Cast columnar grain hollow nickel base alloy articles and alloy

1991-04-17

1992-12-22

Dean, R.

Alloys or metallic compositions

Nickel base

Chromium containing

420448, 148675, 148410, C22C 1905

Patent

active

051732556

ABSTRACT:
One form of an improved cast, hollow, columnar grain nickel base alloy article is provided with outstanding elevated temperature stability as represented by oxidation resistance, an improved combination of longitudinal and transverse stress rupture properties, and a thin wall of less than about 0.035 inch, substantially free of cracks. Described is a heat treatment in combination with an alloy for providing such an article.

REFERENCES:
patent: 3260505 (1966-07-01), Ver Snyder
patent: 3494709 (1970-02-01), Piercey
patent: 4169742 (1979-10-01), Wukusick et al.
patent: 5068084 (1991-11-01), Cetel et al.

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