TY - JOUR N2 - Magnesium alloys thanks to their high specific strength have an extensive potential of the use in a number of industrial applications. The most important of them is the automobile industry in particular. Here it is possible to use this group of materials for great numbers of parts from elements in the car interior (steering wheels, seats, etc.), through exterior parts (wheels particularly of sporting models), up to driving (engine blocks) and gearbox mechanisms themselves. But the use of these alloys in the engine structure has its limitations as these parts are highly thermally stressed. But the commonly used magnesium alloys show rather fast decrease of strength properties with growing temperature of stressing them. This work is aimed at studying this properties both of alloys commonly used (of the Mg-Al-Zn, Mn type), and of that ones used in industrial manufacture in a limited extent (Mg-Al-Sr). These thermomechanical properties are further on complemented with the microstructure analysis with the aim of checking the metallurgical interventions (an effect of inoculation). From the studied materials the test castings were made from which the test bars for the tensile test were subsequently prepared. This test took place within the temperature range of 20°C – 300°C. Achieved results are summarized in the concluding part of the contribution. L1 - http://journals.pan.pl/Content/86408/PDF/10_paper.pdf L2 - http://journals.pan.pl/Content/86408 PY - 2012 IS - No 2 DO - 10.2478/v10266-012-0035-8 KW - mechanical properties KW - metallography KW - Magnesium Alloys KW - Thermomechanical Properties A1 - Cagala, M. A1 - Lichý, P. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2012 T1 - Microstructure and Thermomechanical Properties of Magnesium Alloys Castings UR - http://journals.pan.pl/dlibra/publication/edition/86408 T2 - Archives of Foundry Engineering ER -