Prediction of the effect of artificial aging heat treatment on the yield strength of an open-cell aluminum foam |
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Authors: | Daniel R A Cluff Shahrzad Esmaeili |
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Affiliation: | (1) Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave. West, Waterloo, ON, Canada, N2L 3G1 |
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Abstract: | The effect of artificial aging on the compression yield strength of an open-cell AA6101 foam is studied using both experimental
and modeling approaches. Isothermal calorimetry is used to analyze the precipitation kinetics of the foam. The modeling work
combines the established approaches for predicting the yield strength of open-cell metallic foams as a function of the relative
density and normalized strength, as well as the age hardening behavior of AA6101 alloy. The foam yield strength is related
to the evolution of precipitate content during aging and is modeled for artificial aging at 180 and 220 °C. It is shown that
the model predictions match very well with the experimentally determined yield strength values. The overall results suggest
that the presented analytical and modeling approaches can effectively be used to predict the precipitation hardening behavior
and/or optimize processing and properties of AA6101 foams. |
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Keywords: | |
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