High weldability nickel-base superalloy

Patent · 31 December 1979

OSTI ID:863706

Gibson, Robert C ^[1]; Korenko, Michael K ^[2]

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1. Ringwood, NJ
2. Richland, WA

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.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• DOE Contract Number: E(45-1)-2170
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4231795
• OSTI ID: 863706
• Country of Publication: United States
• Language: English

Related Subjects

/420/376/
0-2
002-0
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05
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1-2
10-20
2-0
4-6
57-63
7-18
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