Homogenizing Annealing of 3104 Aluminum Alloy

The microstructure of as-casted and homogenizing annealing with different parameters 3104 aluminum alloy were studied by means of thermal analysis and optical microscope,then homogenization annealing parameters were determined.The morphology and types of main compounds were studied by scanning electron microscope and its accessory.The results show that the reasonable homogenizing annealing parameters was 590 ℃ for 12 h,and various compounds appeared due to the difference of main alloy components after homogenizing annealing which mainly consisting of (FeMn)Al6,MnAl6,(Al,Fe,Mn,Si) quaternary phase,Mg2Si phase,(Al,Mn,Si) ternary phase,Al8Mg5,(Al,Mn,Mg,Fe) quaternary phase and so on.