Nickel-base powder-cored article, and methods for its preparation and use
AssigneeGeneral Electric Company
InventorThomas Joseph Kelly
Life of this patent
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Abstract
An article is made by preparing an elongated preform having a net metallic composition, and including a tubular sheath made of a sheath nickel-base alloy, and a core disposed within the tubular sheath and including consolidated powder particles made of a core nickel-base alloy. The net metallic composition is preferably a nickel-base superalloy, and most preferably a high-gamma-prime nickel-base superalloy. The preform is wire drawn to a final maximum transverse size that is less than the initial maximum transverse size, to produce a drawn article. The drawn article may be used as a weld filler material.
Claims22
An article having a net metallic composition and comprising:
- a tubular sheath made of a sheath nickel-base alloy;
- and
- a core disposed within the tubular sheath and comprising powder particles made of a core nickel-base alloy, wherein the net metallic composition of the article is a nickel-base superalloy that is heat treatable to produce more than about 30 volume percent gamma prime phase.
An article having a net metallic composition and comprising:
- a tubular sheath made of a nickel-base alloy having about 3% to about 4% by weight of aluminum;
- and
- a core disposed within the tubular sheath and comprising powder particles made of a core nickel-base alloy, wherein the net metallic composition of the core and the sheath provides a nickel-base superalloy having a composition that includes about 10% to about 15% by weight of aluminum.
An article having a net metallic composition that is a high-gamma-prime nickel-base superalloy and comprising:
- a tubular sheath made of a sheath nickel-base alloy having about 3-4 percent of aluminum by weight;
- and
- a core disposed within the tubular sheath and comprising powder particles made of a core nickel-base alloy having mores than about 4 percent of aluminum by weight, wherein the ratio of a weight of the core nickel-base alloy to a weight of a total of the core nickel-base alloy plus the sheath nickel-base alloy is not greater than about 0.3 and wherein the net metallic composition is a precipitation-hardenable nickel-base superalloy.
A method of making weld filler metal, comprising the steps of:
- preparing a preform having a net metallic composition and comprising
- a tubular sheath made of a sheath nickel-base alloy, and
- a core disposed within the tubular sheath and comprising consolidated powder particles made of a core nickel-base alloy, wherein the net metallic composition of the weld metal is a precipitation-hardenable nickel-base superalloy;
- and
- wire drawing the preform to produce a drawn weld filler metal.
A weld filler metal having a net metallic composition and comprising:
- a tubular sheath made of a sheath nickel-base alloy;
- and
- a core disposed within the tubular sheath and comprising powder particles made of a core nickel-base alloy, wherein the core nickel-base alloy has more than about 4 percent of aluminum by weight wherein the net metallic composition of the weld filler metal is a precipitation-hardenable nickel-base superalloy.
Dependencies are inferred from the claim text.