Mechanisms and model of structure formation in metals during severe deformation
It is established that extremely fine fragments and grains are formed when the value of the accumulated curvature in metals increases to the value equal to the maximum tensor density of dislocations. This is provided by the high value of the ratio between the surface area of deformation center and i...
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| Veröffentlicht in: | Физика и техника высоких давлений |
|---|---|
| Datum: | 2006 |
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України
2006
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/70260 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Mechanisms and model of structure formation in metals during severe deformation / F.Z. Utyashev, G.I. Raab // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 73-78. — Бібліогр.: 5 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862729874943246336 |
|---|---|
| author | Utyashev, F.Z. Raab, G.I. |
| author_facet | Utyashev, F.Z. Raab, G.I. |
| citation_txt | Mechanisms and model of structure formation in metals during severe deformation / F.Z. Utyashev, G.I. Raab // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 73-78. — Бібліогр.: 5 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика и техника высоких давлений |
| description | It is established that extremely fine fragments and grains are formed when the value of the accumulated curvature in metals increases to the value equal to the maximum tensor density of dislocations. This is provided by the high value of the ratio between the surface area of deformation center and its volume. Depending on scale factor that influences the development of interfragment deformation and contribution of surface dislocation sources into the deformation process, the fragmented structure either stabilizes or there occurs the phase change from a crystal state to an amorphous one.
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| first_indexed | 2025-12-07T19:16:40Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-70260 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0868-5924 |
| language | English |
| last_indexed | 2025-12-07T19:16:40Z |
| publishDate | 2006 |
| publisher | Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України |
| record_format | dspace |
| spelling | Utyashev, F.Z. Raab, G.I. 2014-11-01T16:09:07Z 2014-11-01T16:09:07Z 2006 Mechanisms and model of structure formation in metals during severe deformation / F.Z. Utyashev, G.I. Raab // Физика и техника высоких давлений. — 2006. — Т. 16, № 4. — С. 73-78. — Бібліогр.: 5 назв. — англ. 0868-5924 PACS: 81.40.−z https://nasplib.isofts.kiev.ua/handle/123456789/70260 It is established that extremely fine fragments and grains are formed when the value of the accumulated curvature in metals increases to the value equal to the maximum tensor density of dislocations. This is provided by the high value of the ratio between the surface area of deformation center and its volume. Depending on scale factor that influences the development of interfragment deformation and contribution of surface dislocation sources into the deformation process, the fragmented structure either stabilizes or there occurs the phase change from a crystal state to an amorphous one. The work was supported by the RFFI Projects 05-08-17911-a and 06-08-00635-a. en Донецький фізико-технічний інститут ім. О.О. Галкіна НАН України Физика и техника высоких давлений Mechanisms and model of structure formation in metals during severe deformation Article published earlier |
| spellingShingle | Mechanisms and model of structure formation in metals during severe deformation Utyashev, F.Z. Raab, G.I. |
| title | Mechanisms and model of structure formation in metals during severe deformation |
| title_full | Mechanisms and model of structure formation in metals during severe deformation |
| title_fullStr | Mechanisms and model of structure formation in metals during severe deformation |
| title_full_unstemmed | Mechanisms and model of structure formation in metals during severe deformation |
| title_short | Mechanisms and model of structure formation in metals during severe deformation |
| title_sort | mechanisms and model of structure formation in metals during severe deformation |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/70260 |
| work_keys_str_mv | AT utyashevfz mechanismsandmodelofstructureformationinmetalsduringseveredeformation AT raabgi mechanismsandmodelofstructureformationinmetalsduringseveredeformation |