Research/Patents/US 4613388
US 4613388Tier 1 — UAP Program Assignee

SUPERPLASTIC ALLOYS FORMED BY ELECTRODEPOSITION

Assignee

Rockwell International

Filed as: ROCKWELL INTERNATIONAL CORPORATION

Filed

Sep 17, 1982

Granted

Sep 23, 1986

Location

THOUSAND OAKS CA US

Abstract

There are provided superplastic alloys formed by electrodeposition of the alloy onto a cathode from an electrolyte containing a first metal ion, which is iron, nickel or cobalt, and a second constituent different from the first, which is iron, nickel, cobalt, tungsten or molybdenum, or a colloidal dispersoid. The products formed are fine-grain deposits free of intergranular embrittling films, and exhibit grain boundary flow at a superplastic temperature below a recrystallization temperature of the deposit. Nickel-cobalt alloys are preferred, and are deposited from halide-free sulfamate baths, with care being taken to eliminate all anode oxides from the system. In a complex structure, the approximate initial hardware contour is formed by electrodeposition, and the final structure formed by superplastic forming.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 25, 1983

Rescinded

Jul 11, 1984

Duration

1 year, 2 months

Inventor

  • 1ROBERT J. WALTER

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records