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Journal of the Southern African Institute of Mining and Metallurgy

On-line version ISSN 2411-9717
Print version ISSN 0038-223X

J. S. Afr. Inst. Min. Metall. vol.111 n.3 Johannesburg  2011




Effect of process control agent (PCA) on the characteristics of mechanically alloyed Ti-Mg powders



C. Machio; H.K. Chikwanda; S. Chikosha

Council for Scientific and Industrial Research (CSIR)




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.

Keywords: Titanium-magnesium, mechanical alloying, PCA



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