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000136058 1001_ $$0P:(DE-Juel1)130924$$aRoitsch, Stefan$$b0$$eCorresponding author$$ufzj
000136058 245__ $$aMicrostructural and macroscopic aspects of the plasticity of complex metallic alloys
000136058 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2008
000136058 300__ $$a157 p.
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000136058 4900_ $$0PERI:(DE-600)2414853-2$$aBerichte des Forschungszentrums Jülich$$v4281
000136058 502__ $$aZugl.: Diss., RWTH Aachen, 2008
000136058 500__ $$aRecord converted from JUWEL: 18.07.2013
000136058 520__ $$aComplex metallic alloys (CMAs) represent a class of materials which are based on crystal structures with exceptionally large unit cells comprising up to more than a thousand atoms. As a result of the structural attributes of these phases, their plastic deformation behaviour features significant differences to conventional mechanisms known from structurally simple materials. In the present work, the plasticity of the three CMA phases, hexagonal μ-Al-Mn, body-centred cubic Mg$_{32}$(Al,Zn)$_{49}$, and face-centred cubic $\beta$-Al-Mg was investigated. Uniaxial deformation experiments on single crystalline samples of these alloys were carried out and thermodynamic activation parameters of the deformation processes were determined. Microstructural investigations by means of transmission electron microscopy (TEM) were carried out on μ-Al-Mn and Mg$_{32}$(Al,Zn)$_{49}$. The underlying deformation mechanisms of these phases were completely determined. Dislocation climb and associated diffusion of vacancies was found to play an essential role in the deformation processes of both materials.
000136058 540__ $$aNeither this book nor any part of it may be reproduced or transmitted in any form or by any  means, electronic or mechanical, including photocopying, microfilming, and recording, or by any information storage and retrieval  system, without permission in writing from the publisher.
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