Structural Evaluation of Mechanically Alloyed (67-x)Ti-xZr-22Si-11B Powders

• Autor(a) principal: Ramos, Alfeu Saraiva [UNESP]
• Data de Publicação: 2012
• Outros Autores: de Miranda Marzullo, Ana Carolina, Trindade Ramos, Erika Coaglia, dos Santos, Dalcy Roberto, Rodrigues Henriques, Vinicius Andre
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.4028/www.scientific.net/MSF.727-728.210; http://hdl.handle.net/11449/9450
• topic: high-energy ball milling; titanium alloy; hot pressing

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.