Recrystallization at grain boundaries in deformed copper bicrystals

H.W.F. Heller, C.A. Verbraak, B.H. Kolster

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Abstract

The role of specific grain boundaries in the nucleation of recrystallization textures is demonstrated by experiments on copper bicrystals. It is deduced that the major part of the recrystallized grains that have nucleated at the grain boundary can be traced back to having nucleated in {100} <001>, {210}<001> or {210}<120> orientations. These orientations do not exist in the bicrystals after deformation but can easily be accounted for by the <112>-slip nucleation mechanism proposed by Verbraak. X-ray strain measurements support this conclusion. Finally, on the basis of the observation of near-CSL misorientation relationships between deformed matrix and recrystallized grains, a suggestion is made for a more general nucleation mechanism.
Original languageEnglish
Pages (from-to)1395-1406
JournalActa Metallurgica
Volume32
Issue number9
DOIs
Publication statusPublished - 1984

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