2002•Rejiagong gongyiRequires access
Study of Mechanic Behavior for 7050 Aluminum Alloy Under Hot-working Conditions
Li Yang
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Abstract
The mechanic behavior of 7075 aluminum alloy during high temperature plastic deformation is studied by isothermal compression of cylindrical specimens using gleeble 1500.The experiment is carrieded out over the range of deformation temperature from 250℃ to 500℃,strain rate from 0.05 s -1 to 50 s -1 .The results show that the flow stress is controlled by both strain rate and deformation temperature, the flow stress decreases with the increase of temperature,while increases with the increase of strain rate.The flow stress of 7075 alloy during high temperature deformation can be represented by a zener hollomon parameter in sinh form.