Variable temperature micropillar compression to reveal basal slip properties of Zircaloy-4

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Title: Variable temperature micropillar compression to reveal <a> basal slip properties of Zircaloy-4
Authors: Wang, S
Giuliani, F
Britton, T
Item Type: Journal Article
Abstract: Zircaloy-4 is widely used as nuclear fuel cladding materials, where it is important to understand the mechanical properties between room temperature and reactor operating temperatures (around 623 K). To aid in this understanding, we have performed compression tests on micropillars aligned to activate <a> basal slip across this temperature range. Engineering analysis of the results indicates that the plastic yield follows a thermally activated constitutive law. We also observe the nature of the slip bands formed on the side surface of our pillars and see characteristic ‘bulging’ that tends to localise as temperature increases.
Issue Date: 15-Mar-2019
Date of Acceptance: 10-Dec-2018
ISSN: 1359-6462
Publisher: Elsevier
Start Page: 451
End Page: 455
Journal / Book Title: Scripta Materialia
Volume: 162
Copyright Statement: © 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Royal Academy Of Engineering
Funder's Grant Number: EP/K034332/1
Keywords: 0912 Materials Engineering
0913 Mechanical Engineering
Publication Status: Published
Embargo Date: 2019-12-19
Online Publication Date: 2018-12-19
Appears in Collections:Faculty of Engineering
Faculty of Natural Sciences