Effect of the Heterogeneous Nucleation of the Primary α-Al Grain Via the Al-4Nb-0.5B Master Alloy in Al-Si Alloys With High Fe Contents

Grain refinement in Al-Si alloys improves their mechanical properties. Research available in the literature shows the search for refinement efficiency through heterogeneous nucleation of the grain, involving the stoichiometric ratio between the alloy elements, the inoculant, and process parameters. In these surveys, there are divergences of information. However, this study does not aim to contradict this information but present an investigation...