Indentation creep study on ultrafine-grained Zn processed by powder metallurgy
Ultrafine-grained Zn (UFG-Zn) with the grain size of about 200nm was processed by Spark Plasma Sintering at 300°C from fine Zn powder. The grain boundaries in the consolidated material were decorated by ZnO dispersoids with a mean thickness of ~20nm. The creep behavior was studied by indentation tes...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2014-02, Vol.596, p.170-175 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Jenei, P. Gubicza, J. Dirras, G. Lábár, J.L. Tingaud, D. |
| description | Ultrafine-grained Zn (UFG-Zn) with the grain size of about 200nm was processed by Spark Plasma Sintering at 300°C from fine Zn powder. The grain boundaries in the consolidated material were decorated by ZnO dispersoids with a mean thickness of ~20nm. The creep behavior was studied by indentation tests in the homologous temperature range of 0.87–0.91. The activation energy of the creep for UFG-Zn was found to be much larger (211–252kJ/mol depending on the oxide content) than the value determined previously for coarse-grained Zn (152–159kJ/mol). The activation energy increased with increasing ZnO content in UFG-Zn. X-ray line profile analysis revealed that the population of the different dislocation slip systems changed during creep deformation, indicating a considerable dislocation activity. |
| doi_str_mv | 10.1016/j.msea.2013.12.050 |
| format | Article |
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The grain boundaries in the consolidated material were decorated by ZnO dispersoids with a mean thickness of ~20nm. The creep behavior was studied by indentation tests in the homologous temperature range of 0.87–0.91. The activation energy of the creep for UFG-Zn was found to be much larger (211–252kJ/mol depending on the oxide content) than the value determined previously for coarse-grained Zn (152–159kJ/mol). The activation energy increased with increasing ZnO content in UFG-Zn. X-ray line profile analysis revealed that the population of the different dislocation slip systems changed during creep deformation, indicating a considerable dislocation activity.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2013.12.050</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Activation energy ; Applied sciences ; Creep ; Creep (materials) ; Cross-disciplinary physics: materials science; rheology ; Deformation, plasticity, and creep ; Dislocations ; Dispersions ; Exact sciences and technology ; Grain boundaries ; Hardness tests ; Indentation ; Materials science ; Materials synthesis; materials processing ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Nanostructured materials ; Physics ; Powder metallurgy ; Powder metallurgy. Composite materials ; Production techniques ; Technology ; Treatment of materials and its effects on microstructure and properties ; Zinc ; Zinc oxide</subject><ispartof>Materials science & engineering. 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A, Structural materials : properties, microstructure and processing</title><description>Ultrafine-grained Zn (UFG-Zn) with the grain size of about 200nm was processed by Spark Plasma Sintering at 300°C from fine Zn powder. The grain boundaries in the consolidated material were decorated by ZnO dispersoids with a mean thickness of ~20nm. The creep behavior was studied by indentation tests in the homologous temperature range of 0.87–0.91. The activation energy of the creep for UFG-Zn was found to be much larger (211–252kJ/mol depending on the oxide content) than the value determined previously for coarse-grained Zn (152–159kJ/mol). The activation energy increased with increasing ZnO content in UFG-Zn. X-ray line profile analysis revealed that the population of the different dislocation slip systems changed during creep deformation, indicating a considerable dislocation activity.</description><subject>Activation energy</subject><subject>Applied sciences</subject><subject>Creep</subject><subject>Creep (materials)</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Deformation, plasticity, and creep</subject><subject>Dislocations</subject><subject>Dispersions</subject><subject>Exact sciences and technology</subject><subject>Grain boundaries</subject><subject>Hardness tests</subject><subject>Indentation</subject><subject>Materials science</subject><subject>Materials synthesis; materials processing</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. 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Composite materials</subject><subject>Production techniques</subject><subject>Technology</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><subject>Zinc</subject><subject>Zinc oxide</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWKt_wNVsBDcz5jHJTMCNFB-FohvduAlp5qakzKMmGWX-vSktLl0dDpz7OB9C1wQXBBNxty26ALqgmLCC0AJzfIJmpK5YXkomTtEMS0pyjiU7RxchbDHGpMR8hl6XfQN91NENfWY8wC4LcWymLNmxjV5b10O-8TpJk3322c4PBkJIZj1lu-GnAZ91EHXbjn4zXaIzq9sAV0edo4-nx_fFS756e14uHla5YYLFvGLUVMJaKjmn61LQitPKcllWXBJTSyMt5lpqzqu1lSK1opSxGizWjIOmbI5uD3vTO18jhKg6Fwy0re5hGIMigqd-pE4E5ogeosYPIXiwauddp_2kCFZ7eGqr9vDUHp4iVCV4aejmuF8Ho1vrdW9c-JukNaOMlCLl7g85SGW_HXgVjIPeQOM8mKiawf135hece4Rg</recordid><startdate>20140224</startdate><enddate>20140224</enddate><creator>Jenei, P.</creator><creator>Gubicza, J.</creator><creator>Dirras, G.</creator><creator>Lábár, J.L.</creator><creator>Tingaud, D.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20140224</creationdate><title>Indentation creep study on ultrafine-grained Zn processed by powder metallurgy</title><author>Jenei, P. ; Gubicza, J. ; Dirras, G. ; Lábár, J.L. ; Tingaud, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-732c76ff29552b4627527f5947591c89c9f05a9a557bf9601322338ef0a35ea23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Activation energy</topic><topic>Applied sciences</topic><topic>Creep</topic><topic>Creep (materials)</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Deformation, plasticity, and creep</topic><topic>Dislocations</topic><topic>Dispersions</topic><topic>Exact sciences and technology</topic><topic>Grain boundaries</topic><topic>Hardness tests</topic><topic>Indentation</topic><topic>Materials science</topic><topic>Materials synthesis; materials processing</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Nanostructured materials</topic><topic>Physics</topic><topic>Powder metallurgy</topic><topic>Powder metallurgy. Composite materials</topic><topic>Production techniques</topic><topic>Technology</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><topic>Zinc</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jenei, P.</creatorcontrib><creatorcontrib>Gubicza, J.</creatorcontrib><creatorcontrib>Dirras, G.</creatorcontrib><creatorcontrib>Lábár, J.L.</creatorcontrib><creatorcontrib>Tingaud, D.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. 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The grain boundaries in the consolidated material were decorated by ZnO dispersoids with a mean thickness of ~20nm. The creep behavior was studied by indentation tests in the homologous temperature range of 0.87–0.91. The activation energy of the creep for UFG-Zn was found to be much larger (211–252kJ/mol depending on the oxide content) than the value determined previously for coarse-grained Zn (152–159kJ/mol). The activation energy increased with increasing ZnO content in UFG-Zn. X-ray line profile analysis revealed that the population of the different dislocation slip systems changed during creep deformation, indicating a considerable dislocation activity.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2013.12.050</doi><tpages>6</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2014-02, Vol.596, p.170-175 |
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| subjects | Activation energy Applied sciences Creep Creep (materials) Cross-disciplinary physics: materials science rheology Deformation, plasticity, and creep Dislocations Dispersions Exact sciences and technology Grain boundaries Hardness tests Indentation Materials science Materials synthesis materials processing Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Nanostructured materials Physics Powder metallurgy Powder metallurgy. Composite materials Production techniques Technology Treatment of materials and its effects on microstructure and properties Zinc Zinc oxide |
| title | Indentation creep study on ultrafine-grained Zn processed by powder metallurgy |
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