000171367 001__ 171367
000171367 005__ 20181203022531.0
000171367 0247_ $$2doi$$a10.1016/j.actamat.2011.03.045
000171367 02470 $$2ISI$$a000291119700041
000171367 037__ $$aARTICLE
000171367 245__ $$aAbout the activation volume for cross-slip in Cu at high stresses
000171367 260__ $$c2011
000171367 269__ $$a2011
000171367 336__ $$aJournal Articles
000171367 520__ $$aThe experiment performed by Bonneville and Escaig, designed for the direct measurement of the activation parameters of cross-slip, has been repeated. A denser initial dislocation forest density is obtained with a higher predeformation stress compared with a previous study. The minimum activation volume at yield is 124b(3) when cross-slip is dominant at 24 K, instead of 280b(3) as proposed formerly. Consequently, the activation energy at zero stress is in the range of 0.61 eV, lower than in the previous study. The results are discussed in terms of predictions of linear elasticity models and those from recent atomistic simulations. To understand the discrepancies between the experimental and simulation results the Bonneville Escaig method, as well as the simulation conditions, require further assessment. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
000171367 6531_ $$aCross-slip
000171367 6531_ $$aCopper
000171367 6531_ $$aDislocation mobility
000171367 6531_ $$aThermally activated processes
000171367 6531_ $$aStress relaxation technique
000171367 6531_ $$aScrew Dislocation Intersections
000171367 6531_ $$aCentered-Cubic Nickel
000171367 6531_ $$aAtomistic Simulations
000171367 6531_ $$aPure Copper
000171367 6531_ $$aAnnihilation
000171367 6531_ $$aDependence
000171367 6531_ $$aEnergetics
000171367 6531_ $$aCrystals
000171367 6531_ $$aDipoles
000171367 6531_ $$aEnergy
000171367 700__ $$aCouteau, Olivier$$uEcole Polytech Fed Lausanne, IPMC, CH-1015 Lausanne, Switzerland
000171367 700__ $$aKruml, Tomas$$uInst Phys Mat, Brno 61662, Czech Republic
000171367 700__ $$aMartin, Jean-Luc$$uEcole Polytech Fed Lausanne, IPMC, CH-1015 Lausanne, Switzerland
000171367 773__ $$j59$$q4207-4215$$tActa Materialia
000171367 909C0 $$0252441$$pICMP$$xU10138
000171367 909CO $$ooai:infoscience.tind.io:171367$$particle
000171367 937__ $$aEPFL-ARTICLE-171367
000171367 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000171367 980__ $$aARTICLE