Journal
SCRIPTA MATERIALIA
Volume 51, Issue 4, Pages 333-337Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2004.03.033
Keywords
aluminium alloys; rare earth; dispersoids; nucleation; 3DAP
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Three dimensional atom-probe (3DAP) has been applied in order to study the nucleation of small, spherical and coherent Al-3(Sc,Zr)-dispersoids. The results indicate that Al-3(Sc,Zr) in the beginning of the nucleation process mainly consist of Al and Sc, while Zr enters the dispersoids at a later stage, i.e. relatively Zr-rich shells seem to form around Sc-rich cores. (C) 2004 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
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