TITLE:
Characterization of Phosphide Platelets in Eutectic Sand Cast Cu-Sn-P Alloy
AUTHORS:
L. O. Mudashiru, T. M. Azeez, S. O. Afolabi, I. A. Babatunde
KEYWORDS:
Spheroidization, Clay Mould, Platelets, Euclidian Shapes
JOURNAL NAME:
International Journal of Nonferrous Metallurgy,
Vol.4 No.3,
July
2,
2015
ABSTRACT: A procedure for evaluating the degree of spheroidization of phosphide platelets in cast Cu-4%Sn-
5%P alloys using fractal analysis was investigated. The specimens were obtained by melting copper
and tin in an improvised clay mould raised to a temperature of 1850°C ± 20°C, holding for a
period of 10 minutes to 1 hour to modify the aspect ratio of the phosphide platelets. It was found
that these platelets have the tendency to change their shape from being spherical to more Euclidian
shapes as time elapses. It was found that the inter-platelets distances are approximately
equal with time. This effect was more pronounced in samples with high holding time.