SOLIDIFICATION CURVES OF Al-Cu, Al-Mg AND Al-Cu-Mg ALLOYS

摘要

Three different methods have been utilized to determine the solidification curves of the Al-rich Al--Cu, Al-Mg and Al-Cu-Mg alloys. These three methods, i.e. a conventional quenching and image analysis method, calculations using two simplistic solidification models, and a proposed DTA coupled with mathematical modeling method, have been illustrated. Obtained by the three different methods, the solid fractions versus solidification temperatures of the solidifying samples are compared with one another, and the three different methods are discussed.