Synthesis, characterization, and nanoindentation response of single crystal Fe–Cr–Ni alloys with FCC and BCC structures
Fe-based alloys are used extensively in many structural applications including under irradiation conditions in the nuclear industry. In this study, model Fe–Cr, Fe–Ni and Fe–Cr–Ni alloys that are the basis of many structural steels were synthesized as single crystals and characterized. The compositi...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2014-08, Vol.611, p.177-187 |
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| creator | Xia, Y.Z. Bei, H. Gao, Y.F. Catoor, D. George, E.P. |
| description | Fe-based alloys are used extensively in many structural applications including under irradiation conditions in the nuclear industry. In this study, model Fe–Cr, Fe–Ni and Fe–Cr–Ni alloys that are the basis of many structural steels were synthesized as single crystals and characterized. The compositions investigated were Fe–15Cr, Fe–30Cr, Fe–30Ni and Fe–15Cr–15Ni (at%). Several key mechanical properties were determined which will be useful in further studies of irradiation/deformation-induced defects. Incipient plasticity and slip characteristics were investigated by nanoindentation on (001) and (1¯10) surfaces, and hardness, modulus, pop-in behavior and theoretical strength were determined. The slip trace patterns after microindentation were imaged in a microscope. A novel slip trace analysis was developed and the underlying deformation mechanisms identified. The analysis shows that under both (001) and (1¯10) indentations, the activated slip system for the BCC alloys is {112}〈111〉; for the FCC alloys the activated slip plane is {111}. These results were confirmed with finite element simulations using a slip-based crystal-plasticity model. Finally, the effects of heterogeneous pop-in mechanisms are discussed in the context of incipient plasticity in the four different alloys. |
| doi_str_mv | 10.1016/j.msea.2014.05.079 |
| format | Article |
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(ORNL), Oak Ridge, TN (United States)</creatorcontrib><description>Fe-based alloys are used extensively in many structural applications including under irradiation conditions in the nuclear industry. In this study, model Fe–Cr, Fe–Ni and Fe–Cr–Ni alloys that are the basis of many structural steels were synthesized as single crystals and characterized. The compositions investigated were Fe–15Cr, Fe–30Cr, Fe–30Ni and Fe–15Cr–15Ni (at%). Several key mechanical properties were determined which will be useful in further studies of irradiation/deformation-induced defects. Incipient plasticity and slip characteristics were investigated by nanoindentation on (001) and (1¯10) surfaces, and hardness, modulus, pop-in behavior and theoretical strength were determined. The slip trace patterns after microindentation were imaged in a microscope. A novel slip trace analysis was developed and the underlying deformation mechanisms identified. The analysis shows that under both (001) and (1¯10) indentations, the activated slip system for the BCC alloys is {112}〈111〉; for the FCC alloys the activated slip plane is {111}. These results were confirmed with finite element simulations using a slip-based crystal-plasticity model. Finally, the effects of heterogeneous pop-in mechanisms are discussed in the context of incipient plasticity in the four different alloys.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2014.05.079</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Activated ; Alloys ; Applied sciences ; Chromium steels ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Crystal plasticity ; Deformation mechanisms ; Deformation, plasticity, and creep ; Elasticity. Plasticity ; Exact sciences and technology ; Face centered cubic lattice ; Ferrous alloy ; Ferrous alloys ; Finite element method ; Materials science ; Mechanical characterization ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. Metallurgy ; Nanoindentation ; Physical radiation effects, radiation damage ; Physics ; Slip ; Slip trace analysis ; Steels ; Structure of solids and liquids; crystallography ; Treatment of materials and its effects on microstructure and properties</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2014-08, Vol.611, p.177-187</ispartof><rights>2014 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c390t-8b7c028d588002301f66b812e58ecdc5a9c04931eb20869d6512a8f62147345c3</citedby><cites>FETCH-LOGICAL-c390t-8b7c028d588002301f66b812e58ecdc5a9c04931eb20869d6512a8f62147345c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0921509314006911$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28673824$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/1156726$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Xia, Y.Z.</creatorcontrib><creatorcontrib>Bei, H.</creatorcontrib><creatorcontrib>Gao, Y.F.</creatorcontrib><creatorcontrib>Catoor, D.</creatorcontrib><creatorcontrib>George, E.P.</creatorcontrib><creatorcontrib>Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)</creatorcontrib><title>Synthesis, characterization, and nanoindentation response of single crystal Fe–Cr–Ni alloys with FCC and BCC structures</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>Fe-based alloys are used extensively in many structural applications including under irradiation conditions in the nuclear industry. In this study, model Fe–Cr, Fe–Ni and Fe–Cr–Ni alloys that are the basis of many structural steels were synthesized as single crystals and characterized. The compositions investigated were Fe–15Cr, Fe–30Cr, Fe–30Ni and Fe–15Cr–15Ni (at%). Several key mechanical properties were determined which will be useful in further studies of irradiation/deformation-induced defects. Incipient plasticity and slip characteristics were investigated by nanoindentation on (001) and (1¯10) surfaces, and hardness, modulus, pop-in behavior and theoretical strength were determined. The slip trace patterns after microindentation were imaged in a microscope. A novel slip trace analysis was developed and the underlying deformation mechanisms identified. The analysis shows that under both (001) and (1¯10) indentations, the activated slip system for the BCC alloys is {112}〈111〉; for the FCC alloys the activated slip plane is {111}. These results were confirmed with finite element simulations using a slip-based crystal-plasticity model. Finally, the effects of heterogeneous pop-in mechanisms are discussed in the context of incipient plasticity in the four different alloys.</description><subject>Activated</subject><subject>Alloys</subject><subject>Applied sciences</subject><subject>Chromium steels</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Crystal plasticity</subject><subject>Deformation mechanisms</subject><subject>Deformation, plasticity, and creep</subject><subject>Elasticity. Plasticity</subject><subject>Exact sciences and technology</subject><subject>Face centered cubic lattice</subject><subject>Ferrous alloy</subject><subject>Ferrous alloys</subject><subject>Finite element method</subject><subject>Materials science</subject><subject>Mechanical characterization</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. Metallurgy</subject><subject>Nanoindentation</subject><subject>Physical radiation effects, radiation damage</subject><subject>Physics</subject><subject>Slip</subject><subject>Slip trace analysis</subject><subject>Steels</subject><subject>Structure of solids and liquids; crystallography</subject><subject>Treatment of materials and its effects on microstructure and properties</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kcGKFDEQhoMoOK6-gKcgCB622yTdSafBizbOKix6UM8hk652MvQkYyqjjF58B9_QJ9n0zuLRQ1JQfPXXn_yEPOWs5oyrl7t6j2BrwXhbM1mzrr9HVlx3TdX2jbpPVqwXvJKsbx6SR4g7xgrJ5Ir8-nQKeQvo8ZK6rU3WZUj-p80-hktqw0iDDdGHEUK-bdIEeIgBgcaJog9fZ6AunTDbma7h7-8_QyrXB0_tPMcT0h8-b-l6GG613pSKOR1dPhaZx-TBZGeEJ3f1gnxZv_08vKuuP169H15fV67pWa70pnNM6FFqzZhoGJ-U2mguQGpwo5O2d6y8ksNGMK36UUkurJ6U4G3XtNI1F-TZWTdi9gadz-C2LoYALhvOpeqEKtCLM3RI8dsRMJu9RwfzbAPEIxquWiHKUbqg4oy6FBETTOaQ_N6mk-HMLHGYnVniMEschklT4ihDz-_0LTo7T8kG5_HfpNCqa7RoC_fqzEH5ke8e0mIYgoPRp8XvGP3_1twAmHGh-w</recordid><startdate>20140812</startdate><enddate>20140812</enddate><creator>Xia, Y.Z.</creator><creator>Bei, H.</creator><creator>Gao, Y.F.</creator><creator>Catoor, D.</creator><creator>George, E.P.</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><scope>OTOTI</scope></search><sort><creationdate>20140812</creationdate><title>Synthesis, characterization, and nanoindentation response of single crystal Fe–Cr–Ni alloys with FCC and BCC structures</title><author>Xia, Y.Z. ; Bei, H. ; Gao, Y.F. ; Catoor, D. ; George, E.P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c390t-8b7c028d588002301f66b812e58ecdc5a9c04931eb20869d6512a8f62147345c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Activated</topic><topic>Alloys</topic><topic>Applied sciences</topic><topic>Chromium steels</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Crystal plasticity</topic><topic>Deformation mechanisms</topic><topic>Deformation, plasticity, and creep</topic><topic>Elasticity. Plasticity</topic><topic>Exact sciences and technology</topic><topic>Face centered cubic lattice</topic><topic>Ferrous alloy</topic><topic>Ferrous alloys</topic><topic>Finite element method</topic><topic>Materials science</topic><topic>Mechanical characterization</topic><topic>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Nanoindentation</topic><topic>Physical radiation effects, radiation damage</topic><topic>Physics</topic><topic>Slip</topic><topic>Slip trace analysis</topic><topic>Steels</topic><topic>Structure of solids and liquids; crystallography</topic><topic>Treatment of materials and its effects on microstructure and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xia, Y.Z.</creatorcontrib><creatorcontrib>Bei, H.</creatorcontrib><creatorcontrib>Gao, Y.F.</creatorcontrib><creatorcontrib>Catoor, D.</creatorcontrib><creatorcontrib>George, E.P.</creatorcontrib><creatorcontrib>Oak Ridge National Lab. 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A, Structural materials : properties, microstructure and processing</jtitle><date>2014-08-12</date><risdate>2014</risdate><volume>611</volume><spage>177</spage><epage>187</epage><pages>177-187</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>Fe-based alloys are used extensively in many structural applications including under irradiation conditions in the nuclear industry. In this study, model Fe–Cr, Fe–Ni and Fe–Cr–Ni alloys that are the basis of many structural steels were synthesized as single crystals and characterized. The compositions investigated were Fe–15Cr, Fe–30Cr, Fe–30Ni and Fe–15Cr–15Ni (at%). Several key mechanical properties were determined which will be useful in further studies of irradiation/deformation-induced defects. Incipient plasticity and slip characteristics were investigated by nanoindentation on (001) and (1¯10) surfaces, and hardness, modulus, pop-in behavior and theoretical strength were determined. The slip trace patterns after microindentation were imaged in a microscope. A novel slip trace analysis was developed and the underlying deformation mechanisms identified. The analysis shows that under both (001) and (1¯10) indentations, the activated slip system for the BCC alloys is {112}〈111〉; for the FCC alloys the activated slip plane is {111}. These results were confirmed with finite element simulations using a slip-based crystal-plasticity model. Finally, the effects of heterogeneous pop-in mechanisms are discussed in the context of incipient plasticity in the four different alloys.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2014.05.079</doi><tpages>11</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2014-08, Vol.611, p.177-187 |
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| subjects | Activated Alloys Applied sciences Chromium steels Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Crystal plasticity Deformation mechanisms Deformation, plasticity, and creep Elasticity. Plasticity Exact sciences and technology Face centered cubic lattice Ferrous alloy Ferrous alloys Finite element method Materials science Mechanical characterization Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Nanoindentation Physical radiation effects, radiation damage Physics Slip Slip trace analysis Steels Structure of solids and liquids crystallography Treatment of materials and its effects on microstructure and properties |
| title | Synthesis, characterization, and nanoindentation response of single crystal Fe–Cr–Ni alloys with FCC and BCC structures |
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