Influence of Centrifugal Force on the Microstructure and Hardness of ZA-8 Alloys

Abstract

In the present work, ZA-8 alloy is processed through centrifugal casting process at different rotational speed of the mould as 400 rpm, 600 rpm and 800 rpm. The effect of rotational speed of the mould on the microstructure and hardness are studied. It is observed that, at 600 rpm complete cast tube with fine microstructure is obtained and at 400 rpm, 800 rpm coarse and dendrite structure is been observed. Uniform hardness values are obtained at inner, middle and outer layer for the cast tube processed at 600 rpm compared to other cast tubes.