High weldability nickel-base superalloy

Details High weldability nickel-base superalloy High weldability nickel-base superalloy

1978-06-22

1980-11-04

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

176 91R, 176 92B, C22C 1905

Patent

active

042317959

ABSTRACT:
This is a nickel-base superalloy with excellent weldability and high strength. Its composition consists essentially of, by weight percent, 10-20 iron, 57-63 nickel, 7-18 chromium, 4-6 molybdenum, 1-2 niobium, 0.2-0.8 silicon, 0.01-0.05 zirconium, 1.0-2.5 titanium, 1.0-2.5 aluminum, 0.02-0.06 carbon, and 0.002-0.015 boron. The weldability and strength of this alloy give it a variety of applications. The long-time structural stability of this alloy together with its low swelling under nuclear radiation conditions, make it especially suitable for use as a duct material and controlling element cladding for sodium-cooled nuclear reactors.

REFERENCES:
patent: 2994605 (1961-08-01), Gill et al.
patent: 3160500 (1964-12-01), Eiselstein et al.
patent: 3598578 (1971-08-01), Wang
patent: 3705827 (1972-12-01), Muzyka et al.
patent: 3865581 (1975-02-01), Sekino et al.
patent: 3972752 (1976-08-01), Honnorat

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