The Influence of the Heating and Cooling Rates on the Temperature of the Phase Transitions
Loading...
6_Chrostek.pdf (664.26 KB)
Authors
Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji (SMJiP)
License
Abstract
During the heat-treating processes (heating and cooling) of metal alloys phase transitions occur that affects their crystalline structure and properties. It is, therefore, important in metallurgy to know the exact transition temperature and the impact of these processes on the structure o the alloys. The aim of this research was to determine the influence of the heating and cooling rates on the temperature of phase transitions and to study how these processes proceed. Thermal analysis was carried out using Differential Scanning Calorimetry (DSC) in the heat flow regime. Two materials were investigated: eutectic alloy aluminum-silicon AK12 and aluminum-iron-manganese bronze BA1032. The following heating and cooling rates were used; 5, 10 and 15°C/min. Obtained results demonstrate that these rates strongly influence such transition parameters as: temperature, enthalpy and the heights of the peaks of the melting and crystallization