Methods for making zirconium based alloys and bulk metallic glasses
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United States of America
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Mar 28, 2018
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Mar 28, 2018
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Abstract
Methods of preparing Zr based metallic using Zr sponge refined by a refining process are described. An exemplary method includes heating Zr sponge in a processing chamber with an electron-beam-heating apparatus or an arc-melting apparatus under a desired pressure condition to release volatile contaminants from the Zr sponge, introducing a purge gas into the processing chamber and permitting the purge gas to intermingle with at least some of the released volatile contaminants, evacuating the processing chamber to extract at least some of the purge gas and released volatile contaminants, repeating the heating of the Zr sponge, the introducing of the purge gas, and the evacuating of the processing chamber release and evacuate additional volatile contaminants from the Zr sponge to provide a processed Zr sponge with enhanced purity, and melting the processed Zr sponge with multiple other alloy constituents to provide a Zr-based metallic alloy.
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