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Preparing Amorphous/Nanocrystalline TiNbZrTaFe Powder by Mechanical Alloying

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Abstract:

(Ti69.7Nb23.7Zr4.9Ta1.7)100-xFex (x=0, 2, 6, and 10) nanocrystalline, nanocomposite and amorphous powders were synthesized by mechanical alloying from blended element powder. The structural transition for the milled powders was confirmed by X-ray diffraction (XRD). Results shows with the increasing Fe content in alloy system, the glass forming ability become larger. Only for x=10, it can obtain nearly completely amorphous structure with wide super cooled liquid region (△Tx =122 K). For x=2 and 6, residual nanocrystals of the β-Ti structure dispersed in the amorphous matrix. For x=0, the milled powder has full nanocrystalline structure. These as-milled powders offer the potential to fabricating the bulk glass material or nanocrystal/glass matrix composites by powder metallurgy for biomedical use.

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Periodical:

Materials Science Forum (Volume 816)

Pages:

671-675

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.816.671

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Online since:

April 2015

Authors:

Li Ming Zou*, Yi Xiang Cai

Keywords:

Amorphous, Mechanical Alloying, Nanocrystalline, Ti Alloy

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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