The powder mixtures of Al, Ti and Cr were mechanically alloyed to obtain nanocrystalline powders of composition. Both FCC phase and undissolved metal chromium formed by MA. During the annealing of the MA powders, the phase transition from FCC to ordered started at ~ and was completed below . As a result of the high-temperature compressive test for the MA powder compacts, the stress-strain curves showed serrated yielding behavior at 400 and , and softening phenomenon below the strain rate of at . The compressive yield strength as a function of test temperatures showed the nature of the positive-temperature dependence which has the peak temperature around .

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