TY - JOUR N2 - Mechanical properties of aluminum-silicon alloys are defined by condition of alloying components in the structure, i.e. plastic metallic matrix created from solid solution  on the basis of Al, as well as hard and brittle precipitations of silicon. Size and distribution of silicon crystals are the main factors having effect on field of practical applications of such alloys. Registration of crystallization processes of the alloys on stage of their preparation is directly connected with practical implementation of crystallization theory to controlling technological processes, enabling obtainment of suitable structure of the material and determining its usage for specific requirements. An attempt to evaluate correlation between values of characteristic points laying on crystallization curves and recorded with use of developed by the author TVDA method (commonly denominated as ATND method) is presented in the paper together with assessment of hardness of tested alloy. Basing on characteristic points from the TVDA method, hardness of EN AC-AlSi9Mg alloy modified with strontium has been described in the paper in a significant way by the first order polynomial. L1 - http://www.czasopisma.pan.pl/Content/109226/PDF/AFE%201_2019_04.pdf L2 - http://www.czasopisma.pan.pl/Content/109226 PY - 2019 IS - No 1 EP - 28 DO - 10.24425/afe.2018.125186 KW - Aluminum alloys KW - crystallization KW - Hardness KW - Regression analysis A1 - Pezda, J. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol. 19 DA - 2019.01.15 T1 - Use of the TVDA Method to Assessment of EN AC-AlSi9Mg Alloy Hardness Moulded in Metal Moulds SP - 25 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/109226 T2 - Archives of Foundry Engineering ER -