Positron annihilation characterization of nanostructured ferritic alloys
Nanostructured ferritic alloys (NFAs) were produced by mechanically alloying Fe–14Cr–3W–0.4Ti and 0.25Y 2O 3 (wt%) powders followed by hot isostatic pressing consolidation at 850, 1000 and 1150 °C. Positron annihilation lifetime and orbital momentum spectroscopy measurements are in qualitative agree...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2009-08, Vol.518 (1), p.150-157 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Alinger, M.J. Glade, S.C. Wirth, B.D. Odette, G.R. Toyama, T. Nagai, Y. Hasegawa, M. |
| description | Nanostructured ferritic alloys (NFAs) were produced by mechanically alloying Fe–14Cr–3W–0.4Ti and 0.25Y
2O
3 (wt%) powders followed by hot isostatic pressing consolidation at 850, 1000 and 1150
°C. Positron annihilation lifetime and orbital momentum spectroscopy measurements are in qualitative agreement with small angle neutron scattering, transmission electron microscopy and atom probe tomography observations, indicating that up to 50% of the annihilations occur at high densities of Y–Ti–O enriched nm-scale features (NFs). Some annihilations may also occur in small cavities. In Y-free control alloys, that do not contain NFs, positrons primarily annihilate in the Fe–Cr matrix and at features such as dislocations, while a small fraction annihilate in large cavities or Ar bubbles. |
| doi_str_mv | 10.1016/j.msea.2009.04.040 |
| format | Article |
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2O
3 (wt%) powders followed by hot isostatic pressing consolidation at 850, 1000 and 1150
°C. Positron annihilation lifetime and orbital momentum spectroscopy measurements are in qualitative agreement with small angle neutron scattering, transmission electron microscopy and atom probe tomography observations, indicating that up to 50% of the annihilations occur at high densities of Y–Ti–O enriched nm-scale features (NFs). Some annihilations may also occur in small cavities. In Y-free control alloys, that do not contain NFs, positrons primarily annihilate in the Fe–Cr matrix and at features such as dislocations, while a small fraction annihilate in large cavities or Ar bubbles.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2009.04.040</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Applied sciences ; Exact sciences and technology ; Ferritic steel ; Metal powders ; Metals. Metallurgy ; NFA ; Nuclear materials ; ODS ; PAS ; Positron ; Powder metallurgy. Composite materials ; Production techniques</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2009-08, Vol.518 (1), p.150-157</ispartof><rights>2009 Elsevier B.V.</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-a741439f3ae4220b9147616f8b779a90ab1cbd95af4c5cf64e1f7a546b2c1fc83</citedby><cites>FETCH-LOGICAL-c361t-a741439f3ae4220b9147616f8b779a90ab1cbd95af4c5cf64e1f7a546b2c1fc83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0921509309005413$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21731699$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Alinger, M.J.</creatorcontrib><creatorcontrib>Glade, S.C.</creatorcontrib><creatorcontrib>Wirth, B.D.</creatorcontrib><creatorcontrib>Odette, G.R.</creatorcontrib><creatorcontrib>Toyama, T.</creatorcontrib><creatorcontrib>Nagai, Y.</creatorcontrib><creatorcontrib>Hasegawa, M.</creatorcontrib><title>Positron annihilation characterization of nanostructured ferritic alloys</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>Nanostructured ferritic alloys (NFAs) were produced by mechanically alloying Fe–14Cr–3W–0.4Ti and 0.25Y
2O
3 (wt%) powders followed by hot isostatic pressing consolidation at 850, 1000 and 1150
°C. Positron annihilation lifetime and orbital momentum spectroscopy measurements are in qualitative agreement with small angle neutron scattering, transmission electron microscopy and atom probe tomography observations, indicating that up to 50% of the annihilations occur at high densities of Y–Ti–O enriched nm-scale features (NFs). Some annihilations may also occur in small cavities. In Y-free control alloys, that do not contain NFs, positrons primarily annihilate in the Fe–Cr matrix and at features such as dislocations, while a small fraction annihilate in large cavities or Ar bubbles.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Ferritic steel</subject><subject>Metal powders</subject><subject>Metals. Metallurgy</subject><subject>NFA</subject><subject>Nuclear materials</subject><subject>ODS</subject><subject>PAS</subject><subject>Positron</subject><subject>Powder metallurgy. Composite materials</subject><subject>Production techniques</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp9UE1LAzEQDaJgrf4BT3vR29bJJvsR8CJFrVDQg57D7DShKdtNTbKC_nq3tHgUHgwzvA_mMXbNYcaBV3eb2TYanBUAagZyBJywCW9qkUslqlM2AVXwvAQlztlFjBsA4BLKCVu8-ehS8H2Gfe_WrsPkxoXWGJCSCe7ncPA267H3MYWB0hDMKrMmBJccZdh1_jtesjOLXTRXxzllH0-P7_NFvnx9fpk_LHMSFU851pJLoaxAI4sCWsVlXfHKNm1dK1SALad2pUq0kkqylTTc1ljKqi2IW2rElN0efHfBfw4mJr11kUzXYW_8ELWQtWqKMWPKigORgo8xGKt3wW0xfGsOel-a3uh9aXpfmgY5AkbRzdEdI2FnA_bk4p-y4LXglVIj7_7AM-OrX84EHcmZnszKBUNJr7z7L-YXmXWEJQ</recordid><startdate>20090825</startdate><enddate>20090825</enddate><creator>Alinger, M.J.</creator><creator>Glade, S.C.</creator><creator>Wirth, B.D.</creator><creator>Odette, G.R.</creator><creator>Toyama, T.</creator><creator>Nagai, Y.</creator><creator>Hasegawa, M.</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>20090825</creationdate><title>Positron annihilation characterization of nanostructured ferritic alloys</title><author>Alinger, M.J. ; Glade, S.C. ; Wirth, B.D. ; Odette, G.R. ; Toyama, T. ; Nagai, Y. ; Hasegawa, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-a741439f3ae4220b9147616f8b779a90ab1cbd95af4c5cf64e1f7a546b2c1fc83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Ferritic steel</topic><topic>Metal powders</topic><topic>Metals. Metallurgy</topic><topic>NFA</topic><topic>Nuclear materials</topic><topic>ODS</topic><topic>PAS</topic><topic>Positron</topic><topic>Powder metallurgy. Composite materials</topic><topic>Production techniques</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alinger, M.J.</creatorcontrib><creatorcontrib>Glade, S.C.</creatorcontrib><creatorcontrib>Wirth, B.D.</creatorcontrib><creatorcontrib>Odette, G.R.</creatorcontrib><creatorcontrib>Toyama, T.</creatorcontrib><creatorcontrib>Nagai, Y.</creatorcontrib><creatorcontrib>Hasegawa, M.</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. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alinger, M.J.</au><au>Glade, S.C.</au><au>Wirth, B.D.</au><au>Odette, G.R.</au><au>Toyama, T.</au><au>Nagai, Y.</au><au>Hasegawa, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Positron annihilation characterization of nanostructured ferritic alloys</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2009-08-25</date><risdate>2009</risdate><volume>518</volume><issue>1</issue><spage>150</spage><epage>157</epage><pages>150-157</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>Nanostructured ferritic alloys (NFAs) were produced by mechanically alloying Fe–14Cr–3W–0.4Ti and 0.25Y
2O
3 (wt%) powders followed by hot isostatic pressing consolidation at 850, 1000 and 1150
°C. Positron annihilation lifetime and orbital momentum spectroscopy measurements are in qualitative agreement with small angle neutron scattering, transmission electron microscopy and atom probe tomography observations, indicating that up to 50% of the annihilations occur at high densities of Y–Ti–O enriched nm-scale features (NFs). Some annihilations may also occur in small cavities. In Y-free control alloys, that do not contain NFs, positrons primarily annihilate in the Fe–Cr matrix and at features such as dislocations, while a small fraction annihilate in large cavities or Ar bubbles.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2009.04.040</doi><tpages>8</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2009-08, Vol.518 (1), p.150-157 |
| issn | 0921-5093 1873-4936 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Exact sciences and technology Ferritic steel Metal powders Metals. Metallurgy NFA Nuclear materials ODS PAS Positron Powder metallurgy. Composite materials Production techniques |
| title | Positron annihilation characterization of nanostructured ferritic alloys |
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