Study of the redistribution of solute in eutectic lead-tin alloys solidified under high acceleration

Abstract

With the objective of studying the effects of gravity in the solidification of materials, a centrifugal that can offer an acceleration environment bigger than gravity during the casting process was developed in the Laboratory of Sensors and Materials of the National Institute for Space Research (LABAS /INPE). So, a lead-tin eutectic alloy was tested and solidified in two different accelerations, 1 g and 9 g (with 1 g equal to 9.8 m/s²). This work presents changes caused by the difference in acceleration in the alloy’s phases distribution along the sample.