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  Thermally-activated flow in nominally binary Al–Mg alloys

Leyson, G. P. M., & Curtin, W. A. (2016). Thermally-activated flow in nominally binary Al–Mg alloys. Scripta Materialia, 111, 85-88. doi:10.1016/j.scriptamat.2015.08.020.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-BA33-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-BA34-3
Genre: Journal Article

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 Creators:
Leyson, Gerard Paul M.1, Author              
Curtin, W. A.2, Author              
Affiliations:
1Adaptive Structural Materials (Simulation), Computational Materials Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863339              
2Institute of Mechanical Engineering, Êcole Polytechnique Fédéral de Lausanne, Lausanne, Switzerland, persistent22              

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Free keywords: Binary alloys; Dislocations (crystals); Models; Plastic flow, Activation volume; Fitting parameters; Flow behaviors; Literature data; Model prediction; Solute strengthening; Temperature dependent; Thermally activated, Aluminum
 Abstract: The temperature-dependent flow behavior in nominally binary Al-Mg alloys measured recently (Jobba et al., 2015; Niewczas et al., 2015) is interpreted in the context of a parameter-free solute strengthening model. The recent measurements show consistently higher strengths as compared to literature data on true binary Al-Mg alloys, which is attributed to the presence of Fe in the nominally binary Al-Mg. Using the Fe concentration as a single fitting parameter, the model predictions for the newer materials when treated as Al-Mg-(Fe) alloys agree with experiments to the same degree as obtained for the true binary Al-Mg. The model then predicts the activation volume in good agreement with experimental trends. © 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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Language(s): eng - English
 Dates: 2016-01-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.scriptamat.2015.08.020
BibTex Citekey: Leyson201685
 Degree: -

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Title: Scripta Materialia
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B. V.
Pages: - Volume / Issue: 111 Sequence Number: - Start / End Page: 85 - 88 Identifier: ISSN: 1359-6462
CoNE: /journals/resource/954926243506