Temperature Effects on the Tensile Properties of Precipitation-Hardened Al-Mg-Cu-Si AlloysReport as inadecuate




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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





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Author to whom correspondence should be addressed.



Academic Editor: Nong Gao

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





Author: J.B. Ferguson 1, Hugo F. Lopez 1, Kyu Cho 2 and Chang-Soo Kim 1,*

Source: http://mdpi.com/



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