Oxidation resistant single crystal superalloy castings

Details Oxidation resistant single crystal superalloy castings Oxidation resistant single crystal superalloy castings

1995-02-15

1996-07-30

Yee, Deborah

Metal treatment

Stock

Directionally solidified

148410, 148428, 420443, C22C 1903

Patent

active

055407897

ABSTRACT:
Single crystal superalloy castings are described which have excellent oxidation resistance. The oxidation resistance is due to the presence of small but effective amounts of magnesium in the casting. Single crystal castings containing magnesium in the range of 5-200 parts per million, by weight, are described.

REFERENCES:
patent: 3146136 (1964-08-01), Bird et al.
patent: 3166412 (1965-01-01), Bieber
patent: 3859060 (1975-01-01), Eiselstein et al.
patent: 4209348 (1980-06-01), Duhl et al.
patent: 4719080 (1988-01-01), Duhl et al.
patent: 5069873 (1991-12-01), Harris et al.
patent: 5335717 (1994-08-01), Chin et al.
Superalloys, edited by C. T. Sims et al: p. 293 1987.
The Making, Shaping and Treating of Steel, edited by H. E. McGannon; pp. 365 and 587 1975.

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