Journal of the Southern African Institute of Mining and Metallurgy
versão On-line ISSN 2411-9717
versão impressa ISSN 0038-223X
MACHIO, C.; CHIKWANDA, H.K. e CHIKOSHA, S.. Effect of process control agent (PCA) on the characteristics of mechanically alloyed Ti-Mg powders. J. S. Afr. Inst. Min. Metall. [online]. 2011, vol.111, n.3, pp.149-153. ISSN 2411-9717.
This paper reports the results of a study to determine the effect of process control agent (PCA) on the characteristics of Ti-Mg powders during milling. It has been shown that a 2% increase in PCA content leads to up to a 40% increase in yield of the milled powder but reduces the kinetics of the mechanical alloying process. The introduction of 4% PCA decreases the mean powder particle size by up to 30%, whereas 6% PCA increases the mean particle size by up to 230%. The characteristics of the milled powders will be discussed in relation to the role of PCA in the milling process.
Palavras-chave : Titanium-magnesium; mechanical alloying; PCA.