precipitates in an Al-Mg-Si-Cu alloy"> precipitates in an Al-Mg-Si-Cu alloy"> Atomistic structure of Cu-containing <tex>$\beta"$</tex> precipitates in an Al-Mg-Si-Cu alloy - Institutional Repository University of Antwerp
Title
Atomistic structure of Cu-containing <tex>$\beta"$</tex> precipitates in an Al-Mg-Si-Cu alloy Atomistic structure of Cu-containing <tex>$\beta"$</tex> precipitates in an Al-Mg-Si-Cu alloy
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Oxford ,
Subject
Physics
Engineering sciences. Technology
Source (journal)
Scripta materialia. - Oxford
Volume/pages
75(2014) , p. 86-89
ISSN
1359-6462
ISI
000331025200022
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The beta '' precipitates in a peak-aged Al-Mg-Si-Cu alloy were measured with an average composition of 28.6Al-38.7Mg-26.5Si-5.17Cu (at.%) using atom probe tomography. High-angle annular dark-field observations revealed that Cu incompletely substitutes for the Mg-1 and Si-3 columns, preferentially for one column in each pair of Si-3. Cu-free Si columns form a parallelogram-shaped network that constitutes the basis of subsequent precipitates in the system, with a = 0.37 nm, b = 0.38 nm, gamma = 113 degrees and c = 0.405 nm. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/315209/9167177.pdf
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