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Study of AlSi9Cu3 Alloy Crystallization Process with Increased Iron Content at Different Number of Remelts

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Monitoring the solidification process is of great importance for understanding the quality of the melt, for controlling it, and for predicting the true properties of the alloy. Solidification is accompanied by the development of heat, the magnitude of which depends on the different phases occurring during solidification. Thermal analysis is now an important part of and tool for quality control, especially when using secondary aluminium alloys in the automotive industry. The effect of remelting on the change of crystallization of individual structural components of experimental AlSi9Cu3 alloy was determined by evaluation of cooling curves and their first derivatives. Structural analysis was evaluated using a scanning electron microscope. The effect of remelting was manifested especially in nucleation of phases rich in iron and copper. An increasing number of remelts had a negative effect after the fourth remelting, when harmful iron phases appeared in the structure in much larger dimensions.
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Bibliogr. 11 poz., rys., tab.
  • University of Zilina, Zilina, Department of Technological Engineering, Slovak Republic
  • Kielce University Technology, Faculty of Mechatronics and Mechanical Engineering, Kielce, Poland
  • University of Zilina, Zilina, Department of Technological Engineering, Slovak Republic
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Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
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