Biaxially textured articles formed by powder metallurgy
AssigneeUT-Battelle, LLC
InventorsAmit Goyal, Robert K. Williams
Life of this patent
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Abstract
A biaxially textured alloy article comprises Ni powder and at least one powder selected from the group consisting of Cr, W, V, Mo, Cu, Al, Ce, YSZ, Y, Rare Earths, (RE), MgO, CeO2, and Y2O3; compacted and heat treated, then rapidly recrystallized to produce a biaxial texture on the article. In some embodiments the alloy article further comprises electromagnetic or electro-optical devices and possesses superconducting properties.
Claims7
A biaxially textured alloy article having a magnetism less than pure Ni comprising a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of binary mixtures consisting of:
- between 99 at % and 80 at % Ni powder and between 1 at % and 20 at % Cr powder;
- between 99 at % and 80 at % Ni powder and between 1 at % and 20 at % W powder;
- between 99 at % and 80 at % Ni powder and between 1 at % and 20 at % V powder;
- between 99 at % and 80 at % Ni powder and between 1 at % and 20 at % Mo powder;
- between 99 at % and 60 at % Ni powder and between 1 at % and 40 at % Cu powder;
- between 99 at % and 80 at % Ni powder and between 1 at % and 20 at % Al powder;
- the article having a fine and homogeneous grain structure;
- and having a dominant cube oriented {100}<100> orientation texture;
- and further having a Curie temperature less than that of pure Ni.
Dependencies are inferred from the claim text.