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Orientation Correlations in Metal Substructures from the Micrometre to Nanometre Range
|Dorte Juul Jensen , Jake Bowen|
Riso National Laboratory, Materials Research Department, Roskilde, Denmark
By deformation from low to high strains, the deformation microstructure typically refines from the micrometre to the nanometre range by subdivision of the original grains. During this subdivision, geometrically necessary boundaries (GNBs) and incidental dislocation boundaries (IDBs) develop . Large misorientations evolve across the GNBs while lower misorientations are observed across the IDBs . An important question is, therefore, if the distribution of crystallographic orientations in the deformation microstructure becomes randomised, or if orientation correlations exist. This is, in particular, relevant after deformation to very large strains.
Presentation: oral at E-MRS Fall Meeting 2003, Symposium G, by Dorte Juul Jensen
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-07-17 18:19 Revised: 2009-06-08 12:55