High strength nickel base single crystal alloys

Details High strength nickel base single crystal alloys High strength nickel base single crystal alloys

1988-09-22

1989-12-05

Hearn, Brian E.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

156DIG100, 148404, B32B 1501, C22C 1905

Patent

active

048852163

ABSTRACT:
Disclosed are novel nickel base single crystal alloy compositions consisting essentially of, by weight, about 8.0-14.0% chromium, 1.5-6.0% cobalt, 0.5-2.0% molybdenum, 3.0-10% tungsten, 2.5-7.0% titanium, 2.5-7.0% aluminum, 3.0-6.0% tantalum, about 0.005% to about 1.0% each of hafnium and/or silicon, optional minor amounts of yttrium, lanthanum and/or manganese, 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.

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Tsuya, et al. "Magnetostrictive Transcucer", Chem. Abstr. 208183g, vol. 89 (1978).
Shankar, et al. "Nickel or Cobalt Single Crystal of Polycrystalline Alloy" Chem. Abstr. 84881k, vol. 95 (1981).
General Electric Co., "Nickel-Based Superalloys", Chem. Abstr. 38411p vol. 104 (1986).

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