Precipitation strengthened nickel based welding material for fusion welding of superalloys

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United States of America Patent

PATENT NO 9902021
SERIAL NO

14800045

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Abstract

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A precipitation strengthened nickel based welding material that comprises 5-15 wt. % Co, 5-25 wt. % Cr, 1-6 wt. % Al, 0.05-0.2 wt. % C, 0.015-0.4 wt. % B, 1-3 wt. % Si, chemical elements selected from among tungsten and molybdenum from about 1 to 20 wt. %, chemical elements selected from among titanium, zirconium, hafnium, tantalum and rhenium from about 1 to 18 wt. % and nickel with impurities to balance, wherein the boron content is inversely proportional to silicon content and decreases from about 0.3 wt. % to about 0.015 wt. % when silicon content increases from about 1 wt. % to about 3 wt. % produces sound high strength and high oxidation resistance crack free welds on precipitation strengthened superalloys and single crystal materials.

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Patent Owner(s)

Patent OwnerAddress
LIBURDI ENGINEERING LIMITEDDUNDAS ONTARIO L9H 7K4

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goncharov, Alexander B Toronto, CA 14 64
Liburdi, Joseph Dundas, CA 24 289
Lowden, Paul Cambridge, CA 21 235

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