Abstract

Load relaxation studies were carried out to test for the existence of a plastic equation of state in high purity polycrystalline aluminium. The tests verified that such an equation of state held at room temperature. The hardness states that were demonstrated were stable against static recovery up to at least 0.45 T m . The hardness curves of stress-strain rate satisfied a scaling relationship with respect to different states of hardness. Accumulated plastic strain is not a good state variable. Transient behavior could be readily distinguished from the time independent state behavior.

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