TY - JOUR N2 - Mechanical and technological properties of castings made from 3xx.x alloys depend mainly on properly performed process of melting and casting, structure of a casting and mould, as well as possible heat treatment. Precipitation processes occurring during the heat treatment of the silumins containing additives of Cu and/or Mg have effect on improvement of mechanical properties of the material, while choice of parameters of solutioning and ageing treatments belongs to objectives of research work performed by a number of authors. Shortened heat treatment, which is presented in the paper assures suitable mechanical properties (Rm), and simultaneously doesn’t cause any increase of production costs of a given component due to long lasting operations of the solutioning and ageing. Results of the research concern effects of the solutioning and ageing parameters on the Rm tensile strength presented in form of the second degree polynomial and illustrated in spatial diagrams. Performed shortened heat treatment results in considerable increase of the Rm tensile strength of the 320.0 alloy as early as after 1 hour of the solutioning and 2 hours of the ageing performed in suitable. L1 - http://www.journals.pan.pl/Content/88423/PDF/13_paper.pdf L2 - http://www.journals.pan.pl/Content/88423 PY - 2015 IS - No 1 DO - 10.1515/afe-2015-0013 KW - Aluminum alloys KW - ATD KW - Heat treatment KW - Tensile strength A1 - Pezda, J. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2015[2015.01.01 AD - 2015.12.31 AD] T1 - Effect of Shortened Heat Treatment on Change of the Rm Tensile Strength of the 320.0 Aluminum Alloy UR - http://www.journals.pan.pl/dlibra/publication/edition/88423 T2 - Archives of Foundry Engineering ER -