TY - JOUR N2 - The most important parameters which predetermine mechanical properties of a material in aspects of suitability for castings to machinery components are: tensile strength (Rm), elongation (A5, hardness (HB) and impact strength (KCV). Heat treatment of aluminum alloys is performed to increase mechanical properties of the alloys mainly. The paper comprises a testing work concerning effect of heat treatment process consisting of solution heat treatment and natural ageing on mechanical properties and structure of AlZn10Si7MgCu alloy moulded in metal moulds. Investigated alloy was melted in an electric resistance furnace. Run of crystallization was presented with use of thermal-derivative method (ATD). This method was also implemented to determination of heat treatment temperature ranges of the alloy. Performed investigations have enabled determination of heat treatment parameters’ range, which conditions suitable mechanical properties of the investigated alloy. Further investigations will be connected with determination of optimal parameters of T6 heat treatment of the investigated alloy and their effect on change of structure and mechanical/technological properties of the investigated alloy. L1 - http://www.journals.pan.pl/Content/86573/PDF/26_paper.pdf L2 - http://www.journals.pan.pl/Content/86573 PY - 2012 IS - No 2 DO - 10.2478/v10266-012-0051-8 KW - heat treatment KW - Aluminum alloys KW - ATD KW - Natural Ageing KW - mechanical properties A1 - Pezda, J. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2012 T1 - Heat Treatment of AlZn10Si7MgCu Alloy and its Effect on Change of Mechanical Properties UR - http://www.journals.pan.pl/dlibra/publication/edition/86573 T2 - Archives of Foundry Engineering ER -