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Dependence of shear-induced mixing on length scale

Arshad, Salman N. and Lach, Timothy G. and Pouryazdan, Mohsen and Hahn, Horst and Bellon, Pascal and Dillon, Shen J. and Averback, Robert S. (2013):
Dependence of shear-induced mixing on length scale.
In: Scripta Materialia, Elsevier Science Publishing, pp. 215-218, 68, (3-4), ISSN 13596462,
[Online-Edition: http://dx.doi.org/10.1016/j.scriptamat.2012.10.027],
[Article]

Abstract

The critical strain for mixing was determined as a function of precipitate size in two-phase Cu90Ag10 alloys using high-pressure torsion experiments. X-ray diffraction, Z-contrast transmission electron microscopy and atom probe tomography were employed to characterize the mixing behavior. For precipitates ranging from 16 to 131 nm in radius, the critical strain increased linearly with the initial precipitate size, with the proportionality constant at ≈5.2 nm−1. These results are in agreement with model predictions based on random dislocation glide.

Item Type: Article
Erschienen: 2013
Creators: Arshad, Salman N. and Lach, Timothy G. and Pouryazdan, Mohsen and Hahn, Horst and Bellon, Pascal and Dillon, Shen J. and Averback, Robert S.
Title: Dependence of shear-induced mixing on length scale
Language: English
Abstract:

The critical strain for mixing was determined as a function of precipitate size in two-phase Cu90Ag10 alloys using high-pressure torsion experiments. X-ray diffraction, Z-contrast transmission electron microscopy and atom probe tomography were employed to characterize the mixing behavior. For precipitates ranging from 16 to 131 nm in radius, the critical strain increased linearly with the initial precipitate size, with the proportionality constant at ≈5.2 nm−1. These results are in agreement with model predictions based on random dislocation glide.

Journal or Publication Title: Scripta Materialia
Volume: 68
Number: 3-4
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: High-pressure torsion, Atom probe tomography, Scanning transmission electron microscopy, Copper alloys, Shear mixing
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 06 Feb 2014 09:01
Official URL: http://dx.doi.org/10.1016/j.scriptamat.2012.10.027
Identification Number: doi:10.1016/j.scriptamat.2012.10.027
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