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|Title:||Presence and absence of significant twinning: Effects on cold deformed microstructures of single phase Zircaloy 2|
|Publisher:||ELSEVIER SCIENCE SA|
|Citation:||MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 518(1-2), 47-55|
|Abstract:||Fully recrystallized Zircaloy 2 samples were made in two dominant classes of crystallographic orientations: grains with predominantly (I) basal (< 0 0 0 1 >) and (II) non-basal plane-normal. The present study charted out detailed microstructural developments, of both the samples, during uniaxial cold compression. Sample I showed insignificant twinning and had stronger signatures (in-grain misorientation and estimated values of lattice strain and dislocation densities) for slip; while sample II had both slip and twin and substantial modifications in crystallographic texture. Strong heterogeneity in residual stress was observed between the suspected parent and product grains/orientations of twinning. This effect could be captured, effectively, with a simple geometric model based on anisotropic elastic stiffness. (C) 2009|
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