Structural Evaluation of Mechanically Alloyed (67-x)Ti-xZr-22Si-11B Powders
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Data
2012-01-01
Autores
Ramos, Alfeu Saraiva [UNESP]
de Miranda Marzullo, Ana Carolina
Trindade Ramos, Erika Coaglia
dos Santos, Dalcy Roberto
Rodrigues Henriques, Vinicius Andre
Título da Revista
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Editor
Trans Tech Publications Ltd
Resumo
The present work reports on the structural evaluation of mechanically alloyed Ti-xZr-22Si-11B (x = 5, 7, 10, 15 and 20 at-%) powders. Milled powders and hot-pressed alloys were characterized by X-ray diffraction, electron scanning microscopy, and electron dispersive spectrometry. The Si and B atoms were preferentially dissolved into the Ti and Zr lattices during ball milling of Ti-xZr-22Si-11B (x = 7, 10, 15 and 20 at-%) powders, and extended solid solutions were achieved. The displacement of Ti peaks was more pronounced to the direction of lower diffraction angles with increasing Zr amounts in mechanically alloyed Ti-Zr-Si-B powders, indicating that the Zr atoms were also dissolved into the Ti lattice.
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Palavras-chave
high-energy ball milling, titanium alloy, hot pressing
Como citar
Advanced Powder Technology Viii, Pts 1 and 2. Stafa-zurich: Trans Tech Publications Ltd, v. 727-728, p. 210-215, 2012.