Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys
The structure of copper nanoclusters/precipitates formed under neutron irradiation in Fe-0.3 wt.% Cu-C alloy is studied by the internal friction and positron annihilation experiments of postirradiation annealed alloys. The appearance of a carbon-relaxation peak during the first recovery stage at abo...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2012-01, Vol.85 (2), p.024202-024202 |
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| container_title | Physical review. B, Condensed matter and materials physics |
| container_volume | 85 |
| creator | Minov, B Lambrecht, M Terentyev, D Domain, C Konstantinovic, M J |
| description | The structure of copper nanoclusters/precipitates formed under neutron irradiation in Fe-0.3 wt.% Cu-C alloy is studied by the internal friction and positron annihilation experiments of postirradiation annealed alloys. The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates. |
| doi_str_mv | 10.1103/PhysRevB.85.024202 |
| format | Article |
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The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><identifier>DOI: 10.1103/PhysRevB.85.024202</identifier><language>eng</language><subject>Alloys ; Annealing ; ANNEALING PROCESSES ; Clusters ; Copper ; COPPER ALLOYS (40 TO 99.3 CU) ; Copper base alloys ; COPPER IRON ALLOYS ; Ferrous alloys ; IRON ALLOYS (50 TO 99 FE) ; MICROSTRUCTURES ; Nanostructure ; PRECIPITATES ; Precipitation ; RADIATION</subject><ispartof>Physical review. 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B, Condensed matter and materials physics</title><description>The structure of copper nanoclusters/precipitates formed under neutron irradiation in Fe-0.3 wt.% Cu-C alloy is studied by the internal friction and positron annihilation experiments of postirradiation annealed alloys. The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates.</description><subject>Alloys</subject><subject>Annealing</subject><subject>ANNEALING PROCESSES</subject><subject>Clusters</subject><subject>Copper</subject><subject>COPPER ALLOYS (40 TO 99.3 CU)</subject><subject>Copper base alloys</subject><subject>COPPER IRON ALLOYS</subject><subject>Ferrous alloys</subject><subject>IRON ALLOYS (50 TO 99 FE)</subject><subject>MICROSTRUCTURES</subject><subject>Nanostructure</subject><subject>PRECIPITATES</subject><subject>Precipitation</subject><subject>RADIATION</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNotjk1LxDAYhIMouK7-AU85eknNm4-aHrW4Kiys-AHelnfTt1ipTU1SYf-9FT3NMDM8DGPnIAsAqS8f3_fpib5vCmcLqYyS6oAtwFoplLZvh7OXlRMSFByzk5Q-pARTGbVgm-ccJ5-nSDy0fMAhJI89cR_GkSIfI_lu7DJmSrwb-EBTjmEQXYzYdHPa8BWJehI1x74P-3TKjlrsE53965K9rm5f6nux3tw91NdrMQK4LKgxjcedrn5_gfUAUFILTYvGGXOFDiQ6uzOtR9TKzmWpQRuN2tp5bfWSXfxxxxi-Jkp5-9klT32PA4UpbaF0dobIqtI_ALBUMg</recordid><startdate>20120106</startdate><enddate>20120106</enddate><creator>Minov, B</creator><creator>Lambrecht, M</creator><creator>Terentyev, D</creator><creator>Domain, C</creator><creator>Konstantinovic, M J</creator><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20120106</creationdate><title>Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys</title><author>Minov, B ; Lambrecht, M ; Terentyev, D ; Domain, C ; Konstantinovic, M J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p118t-ed4dcab39109815c1116ef1dfa48447a810a85b4fcaa32516e631343a3555c153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Alloys</topic><topic>Annealing</topic><topic>ANNEALING PROCESSES</topic><topic>Clusters</topic><topic>Copper</topic><topic>COPPER ALLOYS (40 TO 99.3 CU)</topic><topic>Copper base alloys</topic><topic>COPPER IRON ALLOYS</topic><topic>Ferrous alloys</topic><topic>IRON ALLOYS (50 TO 99 FE)</topic><topic>MICROSTRUCTURES</topic><topic>Nanostructure</topic><topic>PRECIPITATES</topic><topic>Precipitation</topic><topic>RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Minov, B</creatorcontrib><creatorcontrib>Lambrecht, M</creatorcontrib><creatorcontrib>Terentyev, D</creatorcontrib><creatorcontrib>Domain, C</creatorcontrib><creatorcontrib>Konstantinovic, M J</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. 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The appearance of a carbon-relaxation peak during the first recovery stage at about 723 K reveals the fact that complex carbon-vacancy-copper clusters have formed during the irradiation-mediated copper precipitation process. The stability of Cu-C-vacancy clusters is confirmed by ab initio calculations. The existence of a structural phase transition of copper precipitates is observed in the alloys that are annealed at temperatures between the first and second recovery stages, which indicates that the dissociation of vacancies and carbon atoms from the vacancy-copper-carbon clusters is accompanied by the crystallization of Cu precipitates.</abstract><doi>10.1103/PhysRevB.85.024202</doi><tpages>1</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1098-0121 |
| ispartof | Physical review. B, Condensed matter and materials physics, 2012-01, Vol.85 (2), p.024202-024202 |
| issn | 1098-0121 1550-235X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1685810099 |
| source | American Physical Society Journals |
| subjects | Alloys Annealing ANNEALING PROCESSES Clusters Copper COPPER ALLOYS (40 TO 99.3 CU) Copper base alloys COPPER IRON ALLOYS Ferrous alloys IRON ALLOYS (50 TO 99 FE) MICROSTRUCTURES Nanostructure PRECIPITATES Precipitation RADIATION |
| title | Structure of nanoscale copper precipitates in neutron-irradiated Fe-Cu-C alloys |
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