Composite welding wire and method of manufacturing
AssigneeLiburdi Engineering Limited
InventorsAlexander B. Goncharov, Joseph Liburdi, Paul Lowden, Scott Hastie
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Abstract
The present invention is a composite welding wire for fusion welding of components manufactured of superalloys. The composite weld wire includes an inner core wire and a surface layer applied and bonded to the inner core wire. The surface layer includes alloying elements selected from among B and Si with a total bulk content of B and Si in the composite welding wire of 0.1 to 10 wt. %. Preferably the total bulk content of B is less than 4 wt. % and the surface layer comprises from 5 to 95 wt. % of the alloying elements selected from among B and Si.
Claims37
A composite welding wire for fusion welding of components manufactured of superalloys, the composite weld wire comprises:
- a) an inner core wire;
- b) a surface layer applied and bonded to the inner core wire;
- c) the surface layer includes alloying elements selected from among B and Si with a total bulk content of B and Si in the composite welding wire of 0.1 to 10 wt. %.
A method of manufacturing a composite weld wire, the weld wire for fusion welding of superalloy components, the method comprising steps of:
- a) preparing an inner core wire for receiving a surface layer;
- b) depositing onto the wire a surface layer, the surface layer including elements selected from among B and Si such that the total bulk content of B and Si in the composite weld wire is between 0.1 to 10 wt. %.
- c) bonding the surface layer to the inner core wire.
Dependencies are inferred from the claim text.