Assessment of modification and formation of intermetallic compounds in aluminum alloy using thermal analysis

Effect of strontium on the formation temperature and undercooling temperature of intermetallic compounds during pre- and post-eutectic reactions of the alloy has also been investigated using thermal analysis and SEM-EDS. Six reactions in the formation of different phases have been identified by studying first derivative-cooling curves of the alloy. Nucleation temperatures of these phases were studied and compared in both modified and un-modified aluminum alloy.