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Physics of Metals and Metallography

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01.11.2022 | STRENGTH AND PLASTICITY

The Deformation Behavior and Microstructure of Aluminum Alloy Al–6Mg–0.3Sc under Conditions of Hot Forming

verfasst von: X. D. Nguyen, Yu. V. Gamin, T. K. Akopyan, T. Yu. Kin

Erschienen in: Physics of Metals and Metallography | Ausgabe 11/2022

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Abstract

An Al–6.25Mg–0.27Sc–0.46Mn–0.2Zn alloy has been tested after homogenization under uniaxial compression at temperatures of 200, 300, and 400°C and at strain rates of 1, 10, and 20 s^–1. The stress–strain curves describing the deformation behavior of the alloy have been obtained. These curves show a substantial dependence of the yield stress on temperature, but low strain-rate sensitivity. The Zener–Hollomon parameter is calculated using three functions (the hyperbolic sine, power, and exponential functions). The value of the deformation activation energy, 239 kJ/mol, has been determined. The best results according to the agreement of calculation and experimental data are obtained for the exponential function, for which the error is not larger than 4%. The obtained model can be used for modeling the metal forming processes or selecting the temperature-deformation modes of treatment of alloys of the Al–Mg–Sc system.

Vorheriger Artikel Deformation and Fracturing of Tungsten Pseudoalloys with Nickel and Iron under Impact Loading

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Titel: The Deformation Behavior and Microstructure of Aluminum Alloy Al–6Mg–0.3Sc under Conditions of Hot Forming
verfasst von: X. D. Nguyen
Yu. V. Gamin
T. K. Akopyan
T. Yu. Kin
Publikationsdatum: 01.11.2022
Verlag: Pleiades Publishing
Erschienen in: Physics of Metals and Metallography / Ausgabe 11/2022
Print ISSN: 0031-918X
Elektronische ISSN: 1555-6190
DOI: https://doi.org/10.1134/S0031918X2260107X

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