Ni-Al BASE MATERIAL HAVING OPTIMIZED OXIDATION RESISTANT AT HIGH TEMPERATURES AND FURNACE TRANSFER ROLLS MADE THEREFROM
AssigneeArcelorMital
InventorsTanya Ros Yanez, Akmar Kumar De
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Abstract
A high temperature oxidation resistant nickel-aluminide alloy composition and furnace rolls formed therefrom. The inventive nickel-aluminide alloy composition comprises 0.08-0.1 wt. % Zr, 2.5-3.0 wt. % Mo, 7.5-8.5 wt. % Al, 7.5-8.5 wt. % Cr, about 0.01 wt. % B and the balance being substantially nickel.
Claims20
A nickel-aluminide alloy comprising 0.15 wt % or less Zr.
The nickel-aluminide alloy of claim 4, wherein said alloy further comprises about 2.8 wt % Mo.
A furnace roll for a high temperature furnace comprising a cast roll of a nickel-aluminide alloy comprising 0.15 wt % or less Zr.
The furnace roll of claim 14, wherein said alloy further comprises about 2.8 wt % Mo.
Dependencies are inferred from the claim text.