High-temperature creep measurements were made on aluminum specimens cut from one single crystal. The stress range covered was from 2.5×106 to 1.9×108 dynes/cm2. The temperature range was from 157° to 616°C. The creep rate is proportional to (stress)4.6 exp(−Q/kT) where Q is the activation energy of creep (36 000 cal/mole) and kT has its usual meaning.
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J. Weertman (1956) studied this question.
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