Tensile creep of Ti2AlC in air in the temperature range 1000–1150 °C

In the secondary regime of the tensile creep of Ti2AlC, made with commercial powders with a grain size of 14 ± 8 μm, the minimum creep rate is given by a power law, with a stress exponent of 2.5 ± 0.3 and an activation energy of 362 ± 88 kJ mol−1. Dislocation creep—with possibly grain boundary sliding—are presumed to be the dominant creep mechanism(s). The high failure strains (>15%) can be partially attributed to substantial grain kinking near the fracture surface and concomitant damage tolerance.