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Orientation distribution analysis in deformed grains
Author(s) -
Glez Jean Christophe,
Driver Julian
Publication year - 2001
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889801003077
Subject(s) - orientation (vector space) , quaternion , anisotropy , distribution (mathematics) , materials science , crystallography , statistical analysis , aluminium , geometry , physics , mathematics , mathematical analysis , chemistry , optics , metallurgy , statistics
Some improvements are proposed for the statistical analysis of orientation data within individual grains, in particular by allowing for crystallographic symmetries. A method based on quaternions is then presented to characterize orientation spreads including anisotropic effects. Based on this approach, some analyses of disorientation distributions (orientation distribution functions, disorientation noise and the description of sub‐boundary disorientation) are reconsidered. The analysis is illustrated by a practical application to the microtextures of a hot deformed aluminium alloy crystal.