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Quantitative estimation of incompatibility stresses and elastic energy stored in ferritic steel
Author(s) -
Baczmanski A.,
Lipinski P.,
Tidu A.,
Wierzbanowski K.,
Pathiraj B.
Publication year - 2008
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/s0021889808023911
Subject(s) - materials science , crystallite , anisotropy , diffraction , elastic energy , surface energy , ultimate tensile strength , lattice constant , composite material , lattice (music) , crystallography , thermodynamics , metallurgy , optics , physics , chemistry , acoustics
Plastic incompatibility second‐order stresses were determined for different orientations of a polycrystalline grain, using X‐ray diffraction data and results of the self‐consistent elasto‐plastic model. The stresses in cold rolled ferritic steel were determined both in as‐received and under tensile loaded conditions. It has been shown that the Reuss model and the self‐consistent model applied to near surface volume provide the best approaches to determine diffraction elastic constants. For the first time, the elastic energy in an anisotropic material (arising from plastic incompatibilities between grains having various lattice orientations) has been determined. The second‐order incompatibility stresses and stored elastic energy are presented in Euler space.