Title: High temperature low density cobalt alloy

Abstract: A cobalt base superalloy is disclosed which has good elevated temperature properties combined with low density and low cost. The alloy has a nominal composition of .9% carbon, 25% chromium, 15% nickel, 7.5% tungsten, 2.2% titanium, 1.2% zirconium, 1.0% iron, balance essentially cobalt, and is substantially free from columbium and tantalum.

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Inventors: Hecht, Ralph J. (West Palm Beach, FL, US)

Application Number: 542463
Filing Date: 1975-01-20
Publication_date: 1976-01-06
Assignee: United Technologies Corporation (Hartford, CT)
Primary Class(es): 420/439 420/583
Other Classes:
US Patent Ref:

3667939

Jun, 1972

Hecht et al.

75/171.

Other Refs:
Primary Examiner: Dean, R.
Assistant Examiner:
Attorney: Sohl; Charles E.