Journal
MATERIALS LETTERS
Volume 99, Issue -, Pages 81-85Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2013.02.074
Keywords
Texture; Deformation and fracture; Size effect; EBSD
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The deformation behaviour of macrocrystalline and nanocrystalline nickel shows a striking similarity in terms of higher intragranular misorientation and a texture with dominant Brass component on rolling. This is in contrast to microcrystalline nickel, with lower intragranular misorientation and typical Copper type texture. This has been attributed to the free surfaces in macrocrystalline sample and grain boundaries in nanocrystalline sample. Experimental evidence of 'Grain Boundary Affected Zone' (GBAZ) showing multi-slip in contrast to limited slip in the grain interiors has been provided. The similarity in evolution of texture and intragranular misorientation is explained on the basis of reduced contribution from the GBAZ at the two extreme length scales. (c) 2013 Elsevier B.V. All rights reserved.
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