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TECHNICAL PAPERS

A Constitutive Description of Aluminum-1% Magnesium Alloy Deformed Under Hot-Working Conditions

[+] Author and Article Information
E. S. Puchi Cabrera

School of Metallurgical Engineering and Materials Science, Faculty of Engineering, Universidad Central de Venezuela, Apartado postal 47885, Los Chaguaramos, Caracas 1045, Venezuela

J. Eng. Mater. Technol 123(3), 301-308 (Feb 05, 2001) (8 pages) doi:10.1115/1.1370374 History: Received January 03, 2000; Revised February 05, 2001
Copyright © 2001 by ASME
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References

Figures

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Stress-strain curves of Al-1% Mg alloy deformed at 578 K, at different strain rates
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Stress-strain curves of Al-1% Mg alloy deformed at 658 K, at different strain rates
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Stress-strain curves of Al-1% Mg alloy deformed at 728 K, at different strain rates
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Normalized work-hardening rate versus normalized stress at 578 K and different strain rates
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Normalized work-hardening rate versus normalized stress at 658 K and different strain rates
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Normalized work-hardening rate versus normalized stress at 728 K and different strain rates
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Change of the normalized stress parameters σ0 and σss with ln U
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Comparison of the computed values of the initial flow stress with those determined from the optimization of the experimental flow stress curves
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Comparison of the computed values of the saturation stress with those determined from the optimization of the experimental flow stress curves
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Change in the normalized initial work-hardening rate with the effective strain rate
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Comparison of the optimized stress-strain curves at 578 K and different strain rates, with those predicted by the constitutive model advanced here
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Comparison of the optimized stress-strain curves at 658 K and different strain rates, with those predicted by the constitutive model advanced here
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Comparison of the optimized stress-strain curves at 728 K and different strain rates, with those predicted by the constitutive model advanced here
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General comparison of the experimental values of the flow stress determined under different deformation conditions, with those predicted by the constitutive model proposed

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