Zengın, Hüseyın2024-09-292024-09-292019https://doi.org/10.28948/ngumuh.598092https://search.trdizin.gov.tr/tr/yayin/detay/354307https://hdl.handle.net/20.500.14619/10755The hypoeutectic Al-10Mg2Si (wt%) composites, also denoted as Al-6.3Mg-3.7Si (wt%) alloy, were cast in asteel step mould, in which different solidification rates were obtained. The microstructural characterizations weremade by optical microscope and XRD. Corrosion performances were measured by immersion and electrochemicalcorrosion tests in 3.5% NaCl solution. Microstructure analysis showed that all the alloys consisted of ?-Al, Chinesescript type Mg2Si and needle-like Al5FeSi phases. Increasing solidification rate resulted in a remarkable refinementof Chinese script-like eutectic Mg2Si phases. Corrosion tests revealed that increasing solidification rate improvedthe corrosion resistance of Al-10Mg2Si composites due to the more uniform distribution of Mg2Si phases and thestabilization of protective oxide films on the sample surface.eninfo:eu-repo/semantics/openAccessArticle10.28948/ngumuh.5980921152211433543078