The influence of aluminium on the microstructure of austempered ductile cast iron (ADI) has been studied. A number of irons of different compositions have been made by green sand casting and gravity die casting of appropriate design to provide the experimental materials. Austenitising was carried out at different temperatures and holding times for a variety of experimental irons to achieve suff...

This article unmasks the probabilistic nature of high-pressure die casting; specifically, cause scatter in tensile ductility die-cast Al8Si0·4Mn0·3Mg (wt.%) alloy. Scatter is related to size large pores and non-metallic inclusions. We propose that these inclusions form during pyrolysis commercial plunger lubricants, derive from dilatational strains introduced semi-solid deformation. The apparen...