Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing
The Williamson-Hall method based on analyzing the angular dependence of diffraction maximum broadening is used to study the dislocation structure. Densities of chaotically arranged dislocations on samples after their different-rate deformation are measured. Consideration is given to the dislocation...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2012-08-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20122601027 |
| _version_ | 1818907499081760768 |
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| author | Artamonov I.V. Shestakov A.E. |
| author_facet | Artamonov I.V. Shestakov A.E. |
| author_sort | Artamonov I.V. |
| collection | DOAJ |
| description | The Williamson-Hall method based on analyzing the angular dependence of diffraction maximum broadening is used to study the dislocation structure. Densities of chaotically arranged dislocations on samples after their different-rate deformation are measured. Consideration is given to the dislocation structure of a spherical uranium sample after its shock-wave loading, as well as to the dislocation structure of model samples deformed at the rate of ∼ 10−3s−1 up to 5%, 20%, and 60% relative deformation. After deformation, samples were vacuum annealed at 200C, 400C, 600C, 720C, and 850C (in alpha-, beta-, and gamma-phases). Samples were cooled at the rate of ∼ 10∘/min. Results for samples subjected to different-rate deformation and different-temperature annealing are compared. In the dislocation structure of the sample recovered after shock-wave loading, special features that cannot be described with the help of mechanisms observed at the low-rate deformation and cooling were elucidated. Systematic investigations of the uranium dislocation structure at the increasing speed of loading are to be continued). |
| first_indexed | 2024-12-19T21:56:05Z |
| format | Article |
| id | doaj.art-e17c9fe9c8bd4bd2aaef78b344364bba |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T21:56:05Z |
| publishDate | 2012-08-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-e17c9fe9c8bd4bd2aaef78b344364bba2022-12-21T20:04:17ZengEDP SciencesEPJ Web of Conferences2100-014X2012-08-01260102710.1051/epjconf/20122601027Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealingArtamonov I.V.Shestakov A.E.The Williamson-Hall method based on analyzing the angular dependence of diffraction maximum broadening is used to study the dislocation structure. Densities of chaotically arranged dislocations on samples after their different-rate deformation are measured. Consideration is given to the dislocation structure of a spherical uranium sample after its shock-wave loading, as well as to the dislocation structure of model samples deformed at the rate of ∼ 10−3s−1 up to 5%, 20%, and 60% relative deformation. After deformation, samples were vacuum annealed at 200C, 400C, 600C, 720C, and 850C (in alpha-, beta-, and gamma-phases). Samples were cooled at the rate of ∼ 10∘/min. Results for samples subjected to different-rate deformation and different-temperature annealing are compared. In the dislocation structure of the sample recovered after shock-wave loading, special features that cannot be described with the help of mechanisms observed at the low-rate deformation and cooling were elucidated. Systematic investigations of the uranium dislocation structure at the increasing speed of loading are to be continued).http://dx.doi.org/10.1051/epjconf/20122601027 |
| spellingShingle | Artamonov I.V. Shestakov A.E. Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing EPJ Web of Conferences |
| title | Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing |
| title_full | Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing |
| title_fullStr | Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing |
| title_full_unstemmed | Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing |
| title_short | Evolution of uranium dislocation structure at different-rate deformation and different-temperature annealing |
| title_sort | evolution of uranium dislocation structure at different rate deformation and different temperature annealing |
| url | http://dx.doi.org/10.1051/epjconf/20122601027 |
| work_keys_str_mv | AT artamonoviv evolutionofuraniumdislocationstructureatdifferentratedeformationanddifferenttemperatureannealing AT shestakovae evolutionofuraniumdislocationstructureatdifferentratedeformationanddifferenttemperatureannealing |