Tantalum based alloy that is resistant to aqueous corrosion
AssigneeH.C. Starck GmbH
InventorsPaul R. AIMONE, Evan HINSHAW
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Abstract
A tantalum or tantalum alloy which contains pure or substantially pure tantalum and at least one metal element selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Mo, W and Re to form a tantalum alloy that is resistant to aqueous corrosion. The invention also relates to the process of preparing the tantalum alloy.
Claims20
-22. (canceled)
A method of producing a tantalum alloy that is resistant to aqueous corrosion, the method comprising microalloying pure or substantially pure tantalum with Ru,
- wherein (i) the microalloying is performed to produce the tantalum alloy via laser additive manufacturing (LAM), vacuum arc remelting (VAR), electron beam melting (EBM), or plasma arc melting (PAM), and (ii) the Ru is present, in the tantalum alloy, in an amount less than its solubility limit in the pure or substantially pure tantalum.
A tantalum alloy resistant to aqueous corrosion and consisting essentially of Ta-3W—Pt, wherein Pt is present in an amount of at least 50 ppm and at most 10,000 ppm.
Dependencies are inferred from the claim text.