Abstract
In the presented work the microstructural changes in Al-Al₄C₃ with 4 vol.% of Al₄C₃ are presented, with their relations to the properties after straining at different temperatures and strain rates. It has been shown, up to 300 °C the dislocation slip in the grains is the dominant deformation mechanism; from 350 to 450 °C also the additional mechanisms of the slide on the grain boundaries are in effect; at the temperature 450 °C and at the strain rate 10^-1 s^-1 a superplastic like behaviour was observed, the microstructure showing remarkable elongation of the grains in one direction.

Key words
microstructural changes, Al-Al₄C₃ systems, deformation mechanism, superplastic behaviour

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