Heat Treatment of AlZn10Si7MgCu Alloy and its Effect on Change of Mechanical Properties

Journal title

Archives of Foundry Engineering




No 2

Publication authors


heat treatment ; Aluminum alloys ; ATD ; Natural Ageing ; mechanical properties

Divisions of PAS

Nauki Techniczne


Archives of Foundry Engineering continues the publishing activity started by Foundry Commission of the Polish Academy of Sciences (PAN) in Katowice in 1978. The initiator of it was the first Chairman Professor Dr Eng. Wacław Sakwa – Corresponding Member of PAN, Honorary Doctor of Czestochowa University of Technology and Silesian University of Technology. This periodical first name was „Solidification of Metals and Alloys” , and made possible to publish the results of works achieved in the field of the Basic Problems Research Cooperation. The subject of publications was related to the title of the periodical and concerned widely understand problems of metals and alloys crystallization in a casting mold. In 1978-2000 the 44 issues have been published. Since 2001 the Foundry Commission has had patronage of the annually published “Archives of Foundry” and since 2007 quarterly published “Archives of Foundry Engineering”. Thematic scope includes scientific issues of foundry industry:

  • Theoretical Aspects of Casting Processes,
  • Innovative Foundry Technologies and Materials,
  • Foundry Processes Computer Aiding,
  • Mechanization, Automation and Robotics in Foundry,
  • Transport Systems in Foundry,
  • Castings Quality Management,
  • Environmental Protection.


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.


The Katowice Branch of the Polish Academy of Sciences




Artykuły / Articles


ISSN 2299-2944


Wasilewski P. (1993), Silumins - Modification and its impact on structure and properties, 21. ; Pietrowski S. (2001), Silumins. ; Tillová E. (2011), Structural analysis of secondary AlZn10Si8Mg cast alloy, Acta Metallurgica Slovaca, 17, 1, 4. ; Wasilewski P. (1994), Structure and arrangement of the alloy-forming elements in zinc silumin AlZn10Si7Mg (AC11), Solidification of Metals and Alloys, 20, 170. ; Tillová E. (2011), Charakterization of phases in secondary AlZn10Si8Mg cast alloy, Materials Engineering, 18, 1. ; Pietrowski S. (2011), Crystallization and microstructure of low-silicon silumins with alloy additions, Archives of Foundry Engineering, 11, 3, 113. ; Pezda J. (2008), Predicting of mechanical properties of EN AB-46000 alloy subjected to dispersion hardening, Archives of Foundry Engineering, 8, 3, 81. ; Wasilewski P. (2003), Comparison of testing methods for crystallization and solidification of metal alloys, Archives of Foundry, 3, 10, 323. ; Pezda J. (2011), Effect of T6 heat treatment on mechanical properties and microstructure of EN AB-42000 alloy modified with strontium, Archives of Foundry Engineering, 11, 2, 169.