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US 2016/0101471 A1Published application
NOVEL AMORPHOUS AND NANOSTRUCTURED Nb-Zr ALLOY
AssigneeKing Fahd University of Petroleum and Minerals
InventorsMohamed Abdrabou HUSSEIN, Nasser Mohammed AL-AQEELI, Challapalli Suryanarayana
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Abstract
A method for preparing an alloy, including mixing elemental powders of Nb and Zr to obtain a powder mixture, and mechanical alloying to obtain an alloyed powder mixture, where the alloyed powder is more than 50% amorphous. The spark plasma sintering machine was used for the consolidation of the Nb60Zr40 sample prepared by mechanical alloying. An Nb—Zr alloy composition obtained by the method, having an average crystallite size of 18 to 26 nm, hardness of 580.
Claims20
A method for preparing an alloy, comprising
- mixing elemental powders of Nb and Zr to obtain a powder mixture consisting of Nb and Zr, and
- mechanically alloying the powder mixture consisting of Nb and Zr in a ball mill to form a mechanically alloyed powder of atomic formula NbxZry, where x:y represents the atomic percentage and ranges from 40:60 to 60:40,
- wherein the mechanically alloyed powder is more than 50% amorphous, as determined by X-ray diffraction.
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Dependencies are inferred from the claim text.