Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1989-11-29
1991-12-31
Dean, R.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
420443, 420444, 420448, 148404, 148410, 148428, 148 3, 428678, B32B 1501, C22C 1905, C22F 300
Patent
active
050771418
ABSTRACT:
Disclosed are novel nickel base single crystal alloy compositions consisting essentially of, by weight, about 4.0-10.0% chromium, 1.5-6.0% cobalt, 1.0-12.0% molybdenum, 3.0-10.0% tungsten, 2.5-7.0% titanium, 2.5-7.0% aluminum, 3.0-10.0% tantalum, about 0.02%-1.5% of hafnium and/or about 0.02%-1.0% silicon, from about 0.02%-1.0% each of yttrium and/or lanthanum, from about 0.3% to about 8.0% rhenium; from about 0.2% to about 4.0% vanadium and/or from about 0.2% to about 4.0% niobium; from about 0.02% to about 3% platinum; from about 0 to about 1.0% boron, the balance nickel, and the balance nickel.
Methods of thermal treatment and coating of the novel alloys to enhance their mechanical properties are also disclosed, as are articles produced by such methods.
REFERENCES:
patent: 4061495 (1977-12-01), Selman et al.
patent: 4459160 (1984-07-01), Meetham et al.
patent: 4677035 (1987-06-01), Fiedler et al.
patent: 4853044 (1989-08-01), Ford et al.
Naik Subhash K.
Nangia Vinod K.
Avco Corporation
Dean R.
Phipps Margery S.
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