Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties
Consideration is given to the distinction between nanocrystal strengthening and Hall−Petch grain size strengthening which varies linearly with d−1/2. The important role of grain boundary structure in the strengthening formation of nanomaterials is emphasized. Static and dynamic recoveries are the ma...
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| Published in: | Физика и техника высоких давлений |
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| Date: | 2005 |
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| Format: | Article |
| Language: | English |
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Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України
2005
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/70104 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties / Yu.M. Podrezov // Физика и техника высоких давлений. — 2005. — Т. 15, № 1. — С. 11-18. — Бібліогр.: 15 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862647298849243136 |
|---|---|
| author | Podrezov, Yu.M. |
| author_facet | Podrezov, Yu.M. |
| citation_txt | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties / Yu.M. Podrezov // Физика и техника высоких давлений. — 2005. — Т. 15, № 1. — С. 11-18. — Бібліогр.: 15 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика и техника высоких давлений |
| description | Consideration is given to the distinction between nanocrystal strengthening and Hall−Petch grain size strengthening which varies linearly with d−1/2. The important role of grain boundary structure in the strengthening formation of nanomaterials is emphasized. Static and dynamic recoveries are the main reasons limiting the minimal size of structural elements under deformation in high-deformed materials. Structural relaxation proceeding by the recovery mechanism during both the plastic deformation and unloading causes loss of strengthening in high-deformed materials. At the initial stage of repeated deformation the recovered cell structure interacts with moving dislocations in a special way. In the microdeformation level the hardening stress is practically independent of previous deformation degrees in a wide interval of deformation. The usual increase of strengthening with rise of deformation is observed only from the yield point.
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| first_indexed | 2025-12-01T12:52:44Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-70104 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0868-5924 |
| language | English |
| last_indexed | 2025-12-01T12:52:44Z |
| publishDate | 2005 |
| publisher | Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України |
| record_format | dspace |
| spelling | Podrezov, Yu.M. 2014-10-28T19:13:29Z 2014-10-28T19:13:29Z 2005 Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties / Yu.M. Podrezov // Физика и техника высоких давлений. — 2005. — Т. 15, № 1. — С. 11-18. — Бібліогр.: 15 назв. — англ. 0868-5924 PACS: 62.20.Fe https://nasplib.isofts.kiev.ua/handle/123456789/70104 Consideration is given to the distinction between nanocrystal strengthening and Hall−Petch grain size strengthening which varies linearly with d−1/2. The important role of grain boundary structure in the strengthening formation of nanomaterials is emphasized. Static and dynamic recoveries are the main reasons limiting the minimal size of structural elements under deformation in high-deformed materials. Structural relaxation proceeding by the recovery mechanism during both the plastic deformation and unloading causes loss of strengthening in high-deformed materials. At the initial stage of repeated deformation the recovered cell structure interacts with moving dislocations in a special way. In the microdeformation level the hardening stress is practically independent of previous deformation degrees in a wide interval of deformation. The usual increase of strengthening with rise of deformation is observed only from the yield point. The author wishes to thank Prof. S. Firstov and Dr. M. Danylenko for fruitful discussion. I also thank Dr. D. Verbylo who assisted in the experiments. en Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України Физика и техника высоких давлений Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties Article published earlier |
| spellingShingle | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties Podrezov, Yu.M. |
| title | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties |
| title_full | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties |
| title_fullStr | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties |
| title_full_unstemmed | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties |
| title_short | Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties |
| title_sort | nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/70104 |
| work_keys_str_mv | AT podrezovyum nanocrystallinestructureformationundersevereplasticdeformationanditsinfluenceonmechanicalproperties |