Effect of Grain Size on Defects Density and Internal Stresses in Sub-Microcrystals

Abstract:

The paper is devoted to research of an influence of average grains size on scalar dislocation density, fraction of geometrically necessary dislocations, internal stresses and bending- torsion of crystal lattice. Polycrystals of submicrocrystalline copper produced by torsion under hydrostatic pressure were investigated by TEM method.

• Periodical: Materials Science Forum (Volumes 633-634)
• Pages: 605-611
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.633-634.605
• Online since: November 2009
• Authors: Nina Koneva, Eduard Kozlov, N.A. Popova, M.V. Fedorischeva
• Keywords: Bending-Torsion of Crystal Lattice, Geometrically Necessary Dislocation, Grain Size, Internal Stress, Scalar Dislocation Density

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