Abstract
The mechanism of plastic deformation of a MAX phase based on Ti–Al–C elements is investigated in the temperature range 1000–1200 °C. It is shown that at temperatures about 1000 °C the determining mass transport mechanism is the grain-boundary creep. Upon reaching a temperature of above 1100 °C the plastic deformation of the material occurs with the participation of a Ti–Al-based liquid phase, that appears as a thin ($$\approx 10\,\hbox {nm}$$) layer at the grain boundaries of TiC. This deformation mechanism is characterized by a higher rate of plastic deformation as compared to that in a solid phase, that is in the absence of liquid interlayers.
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