Influence of Ga on the formation of phases in cast Al–Mn-based alloys

This work deals with the influence of gallium addition on constitution and formation phases in Al-rich corner Al–Mn system during casting. binary ternary Al–Mn–Ga alloys were cast into a copper mould cavity diameter 5 mm. The microstructures produced characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, backscatter diffraction diffraction. characterization revealed presence α Al , 6 Mn, λ-Al 4 L-Al icosahedral quasicrystals (IQCs) decagonal (DQCs). As amount synthesized increased, proportion varied IQCs DQCs formed. Microanalysis that contained more less manganese than DQCs. • Binary SEM, EDS, EBSD XRD. Characterization shows are present. EDS microanalysis is present results reveal to system, some cases form.