Effect Ni Addition of the Cu-Al Powder by Mechanical Alloying

Abstract:

In the present work is shown the results for solid interaction of a Cu-13.4Al-2Ni (wt%) elemental powders. Together with this mixture was placed tungsten carbide balls into a cylindrical vial under argon atmosphere. The weight ratio of the balls to powder was 20 to 1. A planetary ball mill (Fritsch Pulverizette 5) was used to perform MA at 250 rpm. The elemental powder was milled at 10min, 5 and 10 hours and a small amount of the powders were collected and analyzed via X-ray diffraction, using Cu Kα radiation (λ=0.15418 nm) and differential thermal analyses from 25 up to 450oC at a heating rate of 25oC min-1. The x-ray diffraction patterns showed that after 10h of milling the phase formation of the mechanical alloyed powders is composed of a Cu, full Cu(Al) solid solution and γAl9Cu4.

• Periodical: Materials Science Forum (Volumes 498-499)
• Pages: 141-145
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.498-499.141
• Online since: November 2005
• Authors: Rodrigo Estevam Coelho, Ana Cris R. Veloso, Rodinei Medeiros Gomes, Tadeu Antonio de Azevedo Melo, Severino Jackson Guedes de Lima
• Keywords: Cu-Al-Ni Alloy, Mechanical Alloying (MA), X-Ray Diffractometry

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