Abstract

The combined effect of forging and aging on microstructural evolution and mechanical properties of a Mg-Y-RE alloy was studied in the present work by employing hardness measurements, tensile tests, optical microscopy (OM), scanning electron microscopy (SEM) and electron back scattered diffraction (EBSD) analysis. the -F temper treated bulk Mg-Y-RE alloy samples were subjected to forging for microstructural refinement and subsequent aging to maximize the strength-ductility combination. the forged samples combined with peak aging treatment (60 h at 180 °C) exhibited an excellent combination of high strength (388 MPa) and high ductility (23%). the combined effect of grain refinement, work hardening, precipitation strengthening, and recovery is responsible for the simultaneous improvement of both strength and ductility. a comparative study of age hardening response of forged samples and as received samples showed higher hardenability in forged samples. © 2011 Elsevier B.V.

Department(s)

Materials Science and Engineering

Comments

Army Research Laboratory, Grant W911NF-07-2-0073

Keywords and Phrases

Age hardening; Fracture behavior; Magnesium alloys; Mechanical properties

International Standard Serial Number (ISSN)

0921-5093

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Elsevier, All rights reserved.

Publication Date

01 Jan 2011

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Metallurgy Commons

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