engleski

Analysis of the microstructural constituents of aluminum alloy Al-Mg in cast and homogenized state

Within this work the effect of homogenization of samples taken from the end of aluminium alloy EN AW-5083 slab, cast by semi- continuous, vertical process with the direct water cooling (VDC process) on the development of the microstructure has been determined. In the experimental part the presence of precipitated phases on cast and homogenized samples were examined. By the quantitative analysis trough energy dispersive spectrometer (EDS) the following microstructural constituents have been determined: intermetallic phases Al6(Fe, Mn) and Mg2Si. Its results were compared with the thermodynamically calculated equilibrium phases obtained on the basis of the Thermo-Calc software. Also, the presence of pores has been determined. Distributions of some intermetallic phases and pores in dependence on homogenization time have been examined by light and scanning electron microscopy (SEM).

Al – Mg alloy ; „Direct Chill process“ ; cast state ; homogenization ; microstructural characteristics

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