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Strategy for Achieving High Strength in Al-Mg-Sc Alloys by Intense Plastic Straining

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Abstract:

It is shown that implementation of high strains through equal-channel angular pressing (ECAP) and/or rolling into alloys belonging to Al-Mg-Sc-Zr system allows achieving high strength and satisfactory ductility. It was shown that strain hardening gives a main contribution to overall strength increment attributed to intense plastic straining; the role of grain size hardening is minor. However, extensive grain refinement is a necessary condition for retaining sufficient ductility in full-hardened condition for these materials.

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Periodical:

Materials Science Forum (Volumes 706-709)

Pages:

55-60

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.706-709.55

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Online since:

January 2012

Authors:

Rustam Kaibyshev, Anna Mogucheva, Andrii Dubyna

Keywords:

Rolling , Dynamic Recrystallization (DRX), Equal Channel Angular Extrusion (ECAE), None-Age Hardenable Aluminum Alloys, Strain Hardening

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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