Abstract
High-entropy intermetallics have a great potential for high-temperature applications. However, there is relatively limited information about the plastic flow behaviour and deformation mechanisms of these materials. Here we reported a yield strength anomaly (YSA) in a refractory AlNbTiVZr0.25 high-entropy alloy with a multicomponent B2 matrix phase. The YSA was detected during the compression tests at 22–900 °C with a stress peak at 700 °C. Detailed analysis suggested that the YSA could be connected with the glide of dissociated a 〈111〉 superdislocations.
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