TY - JOUR T1 - 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 JO - Materials Research A1 - Narducci Junior, Carlos A1 - Antunes, André da Silva A1 - Abdalla, Antonio Jorge SN - 1516-1439 UL - 10.1590/1980-5373-MR-2020-0544 VL - 24 Y1 - 2021 PB - Brazil ER -