TY - JOUR N2 - In this study, the effects of grain size refiner addition and various pre-heating mold temperatures on AlSi9 cast alloy microstructure and solidification have been evaluated. For different process conditions, thermal analysis was performed for all samples and cooling curves were established. Important parameters in liquidus and eutectic Si-phase regions have been calculated using the first derivative cooling curves. Secondary Dendrite Arm Spacing (SDAS) variation was also determined. Experimental results question the effectiveness of cooling curve parameters in providing the microstructure data as a function of refinement. The present work shows that the effect of grain refiner addition on the value of SDAS was higher when the solidification time was lower. It indicated that the solidification parameters such as nucleation temperatures of α-Al phase, undercooling temperature and total solidification time were affected by grain refinement. It has been found that the addition of grain refiner affect the eutectic phase formation time. However, it has no effect on the eutectic phase morphology. L1 - http://journals.pan.pl/Content/115072/PDF/AMM-2020-1-48-Ait%20El%20Haj.pdf L2 - http://journals.pan.pl/Content/115072 PY - 2020 IS - No 1 EP - 391 DO - 10.24425/amm.2020.131741 KW - AlSi9 cast alloy KW - grain refinement KW - thermal analysis KW - eutectic phase KW - Secondary Dendrite Arm Spacing (SDAS) A1 - Ait El Haj, Badiâ A1 - Bouayad, Aboubakr A1 - Alami, Mohammed PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 65 DA - 2020.03.11 T1 - Effect of Titanium Addition on the Pro-Eutectic and Eutectic Phases of AlSi9 Cast Alloy SP - 385 UR - http://journals.pan.pl/dlibra/publication/edition/115072 T2 - Archives of Metallurgy and Materials ER -