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Metals 2016, 6(3), 43; doi:10.3390/met6030043

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

1
Materials Science and Engineering Department, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
2
U.S. Army Research Laboratory, Weapons and Materials Research Directorate, Aberdeen Proving Ground, MD 21005, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Nong Gao
Received: 5 January 2016 / Revised: 7 February 2016 / Accepted: 15 February 2016 / Published: 23 February 2016
(This article belongs to the Special Issue Aluminum Alloys)
View Full-Text   |   Download PDF [2412 KB, uploaded 23 February 2016]   |  

Abstract

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. View Full-Text
Keywords: precipitation-hardened alloys; Al alloys; tensile properties; temperature effects; property modeling precipitation-hardened alloys; Al alloys; tensile properties; temperature effects; property modeling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Ferguson, J.; Lopez, H.F.; Cho, K.; Kim, C.-S. Temperature Effects on the Tensile Properties of Precipitation-Hardened Al-Mg-Cu-Si Alloys. Metals 2016, 6, 43.

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