Competing influence of vacancies and interstitial atoms on temperature dependence of creep under irradiation
ABSTRACT In the framework of the Orowan model, a theoretical approach is developed to explain the appearance of a break (local minimum and maximum) on a curve of creep rate dependence on temperature of materials under irradiation. The break is explained by competition of radiation and thermal defect...
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| Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 2013-11, Vol.36 (11), p.1123-1129 |
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| container_title | Fatigue & fracture of engineering materials & structures |
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| creator | Selyshchev, P. Sugakov, V. |
| description | ABSTRACT
In the framework of the Orowan model, a theoretical approach is developed to explain the appearance of a break (local minimum and maximum) on a curve of creep rate dependence on temperature of materials under irradiation. The break is explained by competition of radiation and thermal defect fluxes to dislocations. At some temperature, the fluxes of interstitial atoms and vacancies become equal and compensate each other. Thus, the dislocations do not climb. Climb–glide mechanism does not contribute to the creep and the creep decreases. It is shown that the presence of sinks with different preference coefficients is necessary for the appearance of the break. Theoretical and experimental results are in good agreement. |
| doi_str_mv | 10.1111/ffe.12083 |
| format | Article |
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In the framework of the Orowan model, a theoretical approach is developed to explain the appearance of a break (local minimum and maximum) on a curve of creep rate dependence on temperature of materials under irradiation. The break is explained by competition of radiation and thermal defect fluxes to dislocations. At some temperature, the fluxes of interstitial atoms and vacancies become equal and compensate each other. Thus, the dislocations do not climb. Climb–glide mechanism does not contribute to the creep and the creep decreases. It is shown that the presence of sinks with different preference coefficients is necessary for the appearance of the break. Theoretical and experimental results are in good agreement.</description><identifier>ISSN: 8756-758X</identifier><identifier>EISSN: 1460-2695</identifier><identifier>DOI: 10.1111/ffe.12083</identifier><language>eng</language><publisher>Oxford: Blackwell Publishing Ltd</publisher><subject>Breaking ; climb and-glide of dislocation ; Creep (materials) ; creep rate ; crystal ; defect fluxes ; Dislocations ; Fluxes ; Interstitials ; Irradiation ; Materials creep ; Radiation ; Temperature dependence ; Temperature effects ; Vacancies</subject><ispartof>Fatigue & fracture of engineering materials & structures, 2013-11, Vol.36 (11), p.1123-1129</ispartof><rights>2013 Wiley Publishing Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3683-9305706e8f53d6f921a231c07ba71c93656d1a7b3b31a94dba1f00d20240b1543</citedby><cites>FETCH-LOGICAL-c3683-9305706e8f53d6f921a231c07ba71c93656d1a7b3b31a94dba1f00d20240b1543</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fffe.12083$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fffe.12083$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Selyshchev, P.</creatorcontrib><creatorcontrib>Sugakov, V.</creatorcontrib><title>Competing influence of vacancies and interstitial atoms on temperature dependence of creep under irradiation</title><title>Fatigue & fracture of engineering materials & structures</title><addtitle>Fatigue Fract Engng Mater Struct</addtitle><description>ABSTRACT
In the framework of the Orowan model, a theoretical approach is developed to explain the appearance of a break (local minimum and maximum) on a curve of creep rate dependence on temperature of materials under irradiation. The break is explained by competition of radiation and thermal defect fluxes to dislocations. At some temperature, the fluxes of interstitial atoms and vacancies become equal and compensate each other. Thus, the dislocations do not climb. Climb–glide mechanism does not contribute to the creep and the creep decreases. It is shown that the presence of sinks with different preference coefficients is necessary for the appearance of the break. Theoretical and experimental results are in good agreement.</description><subject>Breaking</subject><subject>climb and-glide of dislocation</subject><subject>Creep (materials)</subject><subject>creep rate</subject><subject>crystal</subject><subject>defect fluxes</subject><subject>Dislocations</subject><subject>Fluxes</subject><subject>Interstitials</subject><subject>Irradiation</subject><subject>Materials creep</subject><subject>Radiation</subject><subject>Temperature dependence</subject><subject>Temperature effects</subject><subject>Vacancies</subject><issn>8756-758X</issn><issn>1460-2695</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1kEFrFTEQx4Mo-Kwe_AYBL3rYNtlskt2jffS1QqsIir2F2exEUvcla5Kt9tsb-6wHwbkMzPx-w_An5CVnx7zWiXN4zFvWi0dkwzvFmlYN8jHZ9FqqRsv--il5lvMNY1x1QmzIvI37BYsPX6kPbl4xWKTR0VuwEKzHTCFMdVUw5eKLh5lCiftMY6AFq5qgrAnphAuG6cG2CXGhax0k6lOCyUPxMTwnTxzMGV_86Ufk8-7s0_aiufxw_m779rKxQvWiGQSTminsnRSTckPLoRXcMj2C5nYQSqqJgx7FKDgM3TQCd4xNLWs7NnLZiSPy-nB3SfH7irmYvc8W5xkCxjWbGkwnFZeSV_TVP-hNXFOo31Wqa4UcpG4r9eZA2RRzTujMkvwe0p3hzPzO3dTczX3ulT05sD_8jHf_B81ud_ZgNAfD54I__xqQvhmlhZbmy_tzc7q7Pu0_DlfmQvwCNLeTbA</recordid><startdate>201311</startdate><enddate>201311</enddate><creator>Selyshchev, P.</creator><creator>Sugakov, V.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201311</creationdate><title>Competing influence of vacancies and interstitial atoms on temperature dependence of creep under irradiation</title><author>Selyshchev, P. ; Sugakov, V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3683-9305706e8f53d6f921a231c07ba71c93656d1a7b3b31a94dba1f00d20240b1543</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Breaking</topic><topic>climb and-glide of dislocation</topic><topic>Creep (materials)</topic><topic>creep rate</topic><topic>crystal</topic><topic>defect fluxes</topic><topic>Dislocations</topic><topic>Fluxes</topic><topic>Interstitials</topic><topic>Irradiation</topic><topic>Materials creep</topic><topic>Radiation</topic><topic>Temperature dependence</topic><topic>Temperature effects</topic><topic>Vacancies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Selyshchev, P.</creatorcontrib><creatorcontrib>Sugakov, V.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Fatigue & fracture of engineering materials & structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Selyshchev, P.</au><au>Sugakov, V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Competing influence of vacancies and interstitial atoms on temperature dependence of creep under irradiation</atitle><jtitle>Fatigue & fracture of engineering materials & structures</jtitle><addtitle>Fatigue Fract Engng Mater Struct</addtitle><date>2013-11</date><risdate>2013</risdate><volume>36</volume><issue>11</issue><spage>1123</spage><epage>1129</epage><pages>1123-1129</pages><issn>8756-758X</issn><eissn>1460-2695</eissn><abstract>ABSTRACT
In the framework of the Orowan model, a theoretical approach is developed to explain the appearance of a break (local minimum and maximum) on a curve of creep rate dependence on temperature of materials under irradiation. The break is explained by competition of radiation and thermal defect fluxes to dislocations. At some temperature, the fluxes of interstitial atoms and vacancies become equal and compensate each other. Thus, the dislocations do not climb. Climb–glide mechanism does not contribute to the creep and the creep decreases. It is shown that the presence of sinks with different preference coefficients is necessary for the appearance of the break. Theoretical and experimental results are in good agreement.</abstract><cop>Oxford</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/ffe.12083</doi><tpages>7</tpages></addata></record> |
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| ispartof | Fatigue & fracture of engineering materials & structures, 2013-11, Vol.36 (11), p.1123-1129 |
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| language | eng |
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| source | Wiley Online Library - AutoHoldings Journals |
| subjects | Breaking climb and-glide of dislocation Creep (materials) creep rate crystal defect fluxes Dislocations Fluxes Interstitials Irradiation Materials creep Radiation Temperature dependence Temperature effects Vacancies |
| title | Competing influence of vacancies and interstitial atoms on temperature dependence of creep under irradiation |
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