Temperature Effects on the Tensile Properties of Precipitation-Hardened Al-Mg-Cu-Si Alloys

Because the mechanical performance of precipitation-hardened alloys can be significantly altered with temperature changes, understanding and predicting the effects of temperatures on various mechanical properties for these alloys are important. In the present work, an analytical model has been devel...

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Bibliographic Details
Published in:Metals (Basel ) 2016-02, Vol.6 (3), p.43-43
Main Authors: Ferguson, J.B., Lopez, Hugo, Cho, Kyu, Kim, Chang-Soo
Format: Article
Language:English
Subjects:
Al alloys
Alloys
ALUMINUM ALLOYS (50 TO 99 AL)
Aluminum base alloys
Elastic modulus
FAILURE
HEAT TREATING
Heat treatment
MATHEMATICAL ANALYSIS
Mathematical models
MECHANICAL PROPERTIES
PRECIPITATION
precipitation-hardened alloys
PROPERTIES
property modeling
Strain hardening
STRAIN HARDENING MECHANISMS
temperature effects
TENSILE PROPERTIES
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Summary:Because the mechanical performance of precipitation-hardened alloys can be significantly altered with temperature changes, understanding and predicting the effects of temperatures on various mechanical properties for these alloys are important. In the present work, an analytical model has been developed to predict the elastic modulus, the yield stress, the failure stress, and the failure strain taking into consideration the effect of temperatures for precipitation-hardenable Al-Mg-Cu-Si Alloys (Al-A319 alloys). In addition, other important mechanical properties of Al-A319 alloys including the strain hardening exponent, the strength coefficient, and the ductility parameter can be estimated using the current model. It is demonstrated that the prediction results based on the proposed model are in good agreement with those obtained experimentally in Al-A319 alloys in the as-cast condition and after W and T7 heat treatments.
ISSN:2075-4701
2075-4701
DOI:10.3390/met6030043