Effect of Strain Rate on Compressive Behavior of Al-Zn-Mg-Cu Alloy and Its Prediction using Thermal Activation Theory

Hiroyuki YAMADA; Keitaro HORIKAWA; Hidetoshi KOBAYASHI; Nagahisa OGASAWARA

doi:10.11395/jjsem.13.s154

research-article

Effect of Strain Rate on Compressive Behavior of Al-Zn-Mg-Cu Alloy and Its Prediction using Thermal Activation Theory

Hiroyuki YAMADA, Keitaro HORIKAWA, Hidetoshi KOBAYASHI, Nagahisa OGASAWARA

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Keywords: Impact, Strain Rate, Testing Temperature, Mesoalite, Aluminum Alloy, Thermal Activation Theory, Adiabatic Heating, Split Hopkinson Pressure Bar Method

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2013 Volume 13 Issue Special_Issue Pages s154-s159

DOI https://doi.org/10.11395/jjsem.13.s154

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Abstract

The effects of strain rate and testing temperature on the compressive behavior of a Mesoalite (Meso10 alloy) have been investigated. In both the quasi-static and impact test, the flow stress decreased with increasing testing temperature. In addition, an increase in compressive strength with strain rate did not occur in the impact test, in comparison with the quasi-static test. Furthermore, application of the thermal activation theory showed that the deformation of Meso10 alloy obeys a single thermal activation process.

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