Abstract
Tests were conducted on the Zn-22 wt% Al eutectoid alloy to compare experimental conditions of true constant strain rate and true constant stress when there is relatively minor grain growth. The stress-strain curves show the presence of significant strain hardening which precedes steady-state flow. In the steady-state condition, similar stresses are obtained when the strain rate is incrementally cycled on a single specimen. There is an extensive primary stage of creep in both Regions I and II, although in Region II the time involved is often very short. It is re-affirmed that, in the absence of significant grain growth, steady-state flow data may be obtained using either constant strain rate or creep testing procedures.
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