Resumo
Analysis of the hardnees and the metalographic struture, show in a FeMnAl alloy the existence of a γ fase and a β precipitate, activitate by Si during the casting processes. During the recovery and recrystalisation temperatures there are the formation of fringes, coarsed grains of γ fase and β precipitate . The thermomechanical treatments give to the material excellent properties of mechanical resistance and good ductility, without the β collaboration.
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