Abstract
Distributions of boundary misorientations in aluminium are measured as a function of deformation for strains up to 10. These experimental distributions are compared to misorientation distributions generated from a random mix of orientations present in the microstructure. It is found that for all strains investigated, the experimental distributions contain a significant higher fraction of low angle boundaries than that expected from the theoretically calculated distributions assuming a random mixing of orientations. This means that there are clear correlations between neighbouring orientations in the microstructure even after strains as large as 10. A similar analysis is done for annealed samples. Here it is found that conventional recrystallisation of a low strained sample leads to almost similar experimental and calculated distributions i.e. almost no correlations exist between neighbouring grains, whereas annealing a sample deformed to epsilon=10 leads to significant structural coarsening, but a large fraction of low angle boundaries are maintained in the experimental misorientation distribution, which is not seen in the theoretically calculated distribution.
Original language | English |
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Journal | Solid State Phenomena |
Volume | 101-102 |
Pages (from-to) | 307-314 |
ISSN | 1012-0394 |
Publication status | Published - 2005 |
Event | Symposium G, European Materials Research Society: Fall meeting 2003 - Warsaw, Poland Duration: 15 Sept 2003 → 19 Sept 2003 |
Conference
Conference | Symposium G, European Materials Research Society |
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Country/Territory | Poland |
City | Warsaw |
Period | 15/09/2003 → 19/09/2003 |