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- W2005449905 abstract "High temperature deformation behavior of Al–5.9%Cu–0.5%Mg alloy and Al–5.9%Cu–0.5%Mg alloy containing 0.06 wt.% of Sn was studied by hot compression tests at various temperatures and strain rates. Addition of trace amounts of Sn into the Al–Cu–Mg alloy system resulted in a significant increase of flow stress for all conditions of temperature and strain rate. 100% and 89% of the flow stress values during hot deformation could be predicted within ± 10% deviation values for the aluminum alloys with and without Sn content, respectively, by artificial neural network (ANN) modeling. From the deformation mechanism maps and microstructural investigation, the safe process regimes for hot working of the base alloy was identified to be at (i) very low strain rate (< 0.003 s −1 ) at temperature < 450 °C, and (ii) high temperature (> 400 °C) with strain rate > 0.02 s −1 . For the micro-alloyed alloy, it was at low strain rates (< 0.01 s -1 ) for the entire temperature range studied. Flow softening for both alloys was observed to be at low strain rates and was identified to be due to dynamic recrystallization (DRX). The metallurgical instability during deformation was identified due to shear band formation and/or inter-crystalline cracking." @default.
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- W2005449905 date "2011-11-01" @default.
- W2005449905 modified "2023-09-25" @default.
- W2005449905 title "Deformation Mechanism Maps for Al-Cu-Mg Alloys Micro-Alloyed with Tin" @default.
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- W2005449905 doi "https://doi.org/10.4028/www.scientific.net/amr.410.283" @default.
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