Metal treatment – Stock – Directionally solidified
Patent
1981-09-14
1983-09-06
Dean, R.
Metal treatment
Stock
Directionally solidified
148 3, 148162, 148410, C22C 1905
Patent
active
044027729
ABSTRACT:
A specific composition range and process sequence are described for the production of single crystal superalloy articles which have an exceptional combination of high temperature mechanical properties and resistance to oxidation and hot corrosion. The nominal composition is 6% Ta, 9% Cr, 5% Co, 1% Ti, 1% Mo, 7% W, 5.5% Al, 0.15% Hf balance essentially nickel. Material of this composition is cast and solidifed in single crystal form and heat treated to produce an optimum microstructure.
REFERENCES:
patent: 4209348 (1980-06-01), Duhl et al.
Cetel Alan D.
Duhl David N.
Dean R.
Sohl Charles E.
United Technologies Corporation
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