Original scientific paper

Testing phase changes in Al-Si alloys with application of thermal analysis and differential calorimetric analysis

J. Piątkowski ; The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland
B. Gajdzik ; The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland

Abstract

The paper presents enthalpy of melting and solidification of casting aluminium alloys AlSi6, AlSi12 and AlSi18 during heating and cooling. Calorimetric measurements preceded by tests of thermal analysis ATD were conducted on high-temperature scanning calorimeter multi HTC. A direct method was used for determining parameters of hightemperature processes and enthalpies occurring in phase changes. This method allowed for precise determining of endothermic and exothermic phase changes and, on their basis, the characteristic parameters of solidification necessary to assess the thermal endurance were marked.

Keywords

Al-Si alloys; phase changes; thermal analysis; calorimetric analysis

Hrčak ID:

100818

URI

https://hrcak.srce.hr/100818

Publication date:

1.10.2013.

Visits: 1.948 *