The development of strain anisotropy during plastic deformation of an aluminium polycrystal
To measure internal strains in an Al MMC, time-of-flight (TOF) neutron diffraction was used on the ENGIN instrument at ISIS, RAL, in Oxfordshire, and a monochromated X-ray beam was employed on the BM16 beamline at the ESRF in Grenoble. The development of intergranular stresses between groups of grai...
| Hoofdauteurs: | , , |
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| Formaat: | Journal article |
| Taal: | English |
| Gepubliceerd in: |
Trans Tech Publications
2000
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| Onderwerpen: |
| _version_ | 1826295039011061760 |
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| author | Korsunsky, A Daymond, M Wells, K |
| author_facet | Korsunsky, A Daymond, M Wells, K |
| author_sort | Korsunsky, A |
| collection | OXFORD |
| description | To measure internal strains in an Al MMC, time-of-flight (TOF) neutron diffraction was used on the ENGIN instrument at ISIS, RAL, in Oxfordshire, and a monochromated X-ray beam was employed on the BM16 beamline at the ESRF in Grenoble. The development of intergranular stresses between groups of grains possessing certain crystallographic orientations was studied using difraction of penetrating radiation. Due to aluminium's highly isotropic elastic modulus, the variation of measured strains in the alloy matrix with orientation can be attributed to the anisotropy of the crystal yield surface and plastic flow parameters. A simple illustrative model is presented which explains the observed correlation between the amount of plastic strain (PS) and the measured anisotropy strain (AS) values. In particular, the model explains why a linear relationship is observed between AS and PS for low strain values, and how saturation of AS sets in at higher imposed PS levels. |
| first_indexed | 2024-03-07T03:54:58Z |
| format | Journal article |
| id | oxford-uuid:c28ff9a4-975b-4afd-aab5-2ee57f8bdf8e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:54:58Z |
| publishDate | 2000 |
| publisher | Trans Tech Publications |
| record_format | dspace |
| spelling | oxford-uuid:c28ff9a4-975b-4afd-aab5-2ee57f8bdf8e2022-03-27T06:09:51ZThe development of strain anisotropy during plastic deformation of an aluminium polycrystalJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c28ff9a4-975b-4afd-aab5-2ee57f8bdf8eEngineering & allied sciencesEnglishOxford University Research Archive - ValetTrans Tech Publications2000Korsunsky, ADaymond, MWells, KTo measure internal strains in an Al MMC, time-of-flight (TOF) neutron diffraction was used on the ENGIN instrument at ISIS, RAL, in Oxfordshire, and a monochromated X-ray beam was employed on the BM16 beamline at the ESRF in Grenoble. The development of intergranular stresses between groups of grains possessing certain crystallographic orientations was studied using difraction of penetrating radiation. Due to aluminium's highly isotropic elastic modulus, the variation of measured strains in the alloy matrix with orientation can be attributed to the anisotropy of the crystal yield surface and plastic flow parameters. A simple illustrative model is presented which explains the observed correlation between the amount of plastic strain (PS) and the measured anisotropy strain (AS) values. In particular, the model explains why a linear relationship is observed between AS and PS for low strain values, and how saturation of AS sets in at higher imposed PS levels. |
| spellingShingle | Engineering & allied sciences Korsunsky, A Daymond, M Wells, K The development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| title | The development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| title_full | The development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| title_fullStr | The development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| title_full_unstemmed | The development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| title_short | The development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| title_sort | development of strain anisotropy during plastic deformation of an aluminium polycrystal |
| topic | Engineering & allied sciences |
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