On the Hall–Petch relationship in a nanostructured Al–Cu alloy
▶ Yield strength values of Al–4Cu alloy were analysed via Hall–Petch relation. ▶ H–P analysis revealed apparently high ‘ σ 0’ (170 MPa) and a high ‘ k’ ( 0.13 MPa m ) ▶ Precipitates and oxide particles are the likely reason for such a high values. ▶ True ‘ σ 0’ and ‘ k’ were evaluated by conside...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2010-11, Vol.527 (29), p.7821-7825 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Shanmugasundaram, T. Heilmaier, M. Murty, B.S. Sarma, V. Subramanya |
| description | ▶ Yield strength values of Al–4Cu alloy were analysed via Hall–Petch relation. ▶ H–P analysis revealed apparently high ‘
σ
0’ (170
MPa) and a high ‘
k’ (
0.13
MPa
m
) ▶ Precipitates and oxide particles are the likely reason for such a high values. ▶ True ‘
σ
0’ and ‘
k’ were evaluated by considering only the grain size contribution. ▶ This agrees with values taken from pure Al.
Mechanical properties of bulk nanocrystalline Al–4Cu alloys with grain sizes from 47 to 105
nm, synthesized by mechanically alloying followed by vacuum hot pressing at different temperatures, were analysed through Hall–Petch relation. Hall–Petch analysis revealed a high frictional stress (170
MPa) and a high positive slope (
0.13
MPa
m
) as compared to pure Al, which has a frictional stress (15–30
MPa) and a slope (
0.06
–
0.09
MPa
m
). From a detailed evaluation of different strengthening mechanisms it is inferred that the Al
2Cu precipitates and oxide particles are the likely reason for such high values of frictional stress and slope. |
| doi_str_mv | 10.1016/j.msea.2010.08.070 |
| format | Article |
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σ
0’ (170
MPa) and a high ‘
k’ (
0.13
MPa
m
) ▶ Precipitates and oxide particles are the likely reason for such a high values. ▶ True ‘
σ
0’ and ‘
k’ were evaluated by considering only the grain size contribution. ▶ This agrees with values taken from pure Al.
Mechanical properties of bulk nanocrystalline Al–4Cu alloys with grain sizes from 47 to 105
nm, synthesized by mechanically alloying followed by vacuum hot pressing at different temperatures, were analysed through Hall–Petch relation. Hall–Petch analysis revealed a high frictional stress (170
MPa) and a high positive slope (
0.13
MPa
m
) as compared to pure Al, which has a frictional stress (15–30
MPa) and a slope (
0.06
–
0.09
MPa
m
). From a detailed evaluation of different strengthening mechanisms it is inferred that the Al
2Cu precipitates and oxide particles are the likely reason for such high values of frictional stress and slope.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2010.08.070</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Aluminum ; Aluminum alloys ; Aluminum base alloys ; Condensed matter: structure, mechanical and thermal properties ; Exact sciences and technology ; Grain size ; Hall–Petch relation ; Hot pressing ; Mechanical alloying ; Mechanical and acoustical properties of condensed matter ; Mechanical properties of nanoscale materials ; Nanostructured materials ; Oxides ; Physics ; Precipitates ; Precipitation ; Stresses ; Yield strength</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2010-11, Vol.527 (29), p.7821-7825</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-a9eabb1fc83af218feb02b9a85e142777c27e9de0a53c64b3d469a4e92a8467c3</citedby><cites>FETCH-LOGICAL-c428t-a9eabb1fc83af218feb02b9a85e142777c27e9de0a53c64b3d469a4e92a8467c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2010.08.070$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23361855$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Shanmugasundaram, T.</creatorcontrib><creatorcontrib>Heilmaier, M.</creatorcontrib><creatorcontrib>Murty, B.S.</creatorcontrib><creatorcontrib>Sarma, V. Subramanya</creatorcontrib><title>On the Hall–Petch relationship in a nanostructured Al–Cu alloy</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>▶ Yield strength values of Al–4Cu alloy were analysed via Hall–Petch relation. ▶ H–P analysis revealed apparently high ‘
σ
0’ (170
MPa) and a high ‘
k’ (
0.13
MPa
m
) ▶ Precipitates and oxide particles are the likely reason for such a high values. ▶ True ‘
σ
0’ and ‘
k’ were evaluated by considering only the grain size contribution. ▶ This agrees with values taken from pure Al.
Mechanical properties of bulk nanocrystalline Al–4Cu alloys with grain sizes from 47 to 105
nm, synthesized by mechanically alloying followed by vacuum hot pressing at different temperatures, were analysed through Hall–Petch relation. Hall–Petch analysis revealed a high frictional stress (170
MPa) and a high positive slope (
0.13
MPa
m
) as compared to pure Al, which has a frictional stress (15–30
MPa) and a slope (
0.06
–
0.09
MPa
m
). From a detailed evaluation of different strengthening mechanisms it is inferred that the Al
2Cu precipitates and oxide particles are the likely reason for such high values of frictional stress and slope.</description><subject>Aluminum</subject><subject>Aluminum alloys</subject><subject>Aluminum base alloys</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Exact sciences and technology</subject><subject>Grain size</subject><subject>Hall–Petch relation</subject><subject>Hot pressing</subject><subject>Mechanical alloying</subject><subject>Mechanical and acoustical properties of condensed matter</subject><subject>Mechanical properties of nanoscale materials</subject><subject>Nanostructured materials</subject><subject>Oxides</subject><subject>Physics</subject><subject>Precipitates</subject><subject>Precipitation</subject><subject>Stresses</subject><subject>Yield strength</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kM9Kw0AQhxdRsFZfwFMu4ilx_yXZBS-1qBUK9aDnZbKZ0C1pUncToTffwTf0SUxo8ehpYPh-v2E-Qq4ZTRhl2d0m2QaEhNNhQVVCc3pCJkzlIpZaZKdkQjVncUq1OCcXIWwopUzSdEIeVk3UrTFaQF3_fH2_YmfXkccaOtc2Ye12kWsiiBpo2tD53na9xzKajey8j4ZQu78kZxXUAa-Oc0renx7f5ot4uXp-mc-WsZVcdTFohKJglVUCKs5UhQXlhQaVIpM8z3PLc9QlUkiFzWQhSplpkKg5KJnlVkzJ7aF359uPHkNnti5YrGtosO2DUVJLyTMlB5IfSOvbEDxWZufdFvzeMGpGX2ZjRl9m9GWoMoOvIXRzrIdgoa48NNaFvyQXImMqTQfu_sDh8OunQ2-CddhYLJ1H25mydf-d-QXJP4Jh</recordid><startdate>20101115</startdate><enddate>20101115</enddate><creator>Shanmugasundaram, T.</creator><creator>Heilmaier, M.</creator><creator>Murty, B.S.</creator><creator>Sarma, V. Subramanya</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20101115</creationdate><title>On the Hall–Petch relationship in a nanostructured Al–Cu alloy</title><author>Shanmugasundaram, T. ; Heilmaier, M. ; Murty, B.S. ; Sarma, V. Subramanya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-a9eabb1fc83af218feb02b9a85e142777c27e9de0a53c64b3d469a4e92a8467c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Aluminum</topic><topic>Aluminum alloys</topic><topic>Aluminum base alloys</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Exact sciences and technology</topic><topic>Grain size</topic><topic>Hall–Petch relation</topic><topic>Hot pressing</topic><topic>Mechanical alloying</topic><topic>Mechanical and acoustical properties of condensed matter</topic><topic>Mechanical properties of nanoscale materials</topic><topic>Nanostructured materials</topic><topic>Oxides</topic><topic>Physics</topic><topic>Precipitates</topic><topic>Precipitation</topic><topic>Stresses</topic><topic>Yield strength</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shanmugasundaram, T.</creatorcontrib><creatorcontrib>Heilmaier, M.</creatorcontrib><creatorcontrib>Murty, B.S.</creatorcontrib><creatorcontrib>Sarma, V. Subramanya</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</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>Shanmugasundaram, T.</au><au>Heilmaier, M.</au><au>Murty, B.S.</au><au>Sarma, V. Subramanya</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the Hall–Petch relationship in a nanostructured Al–Cu alloy</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2010-11-15</date><risdate>2010</risdate><volume>527</volume><issue>29</issue><spage>7821</spage><epage>7825</epage><pages>7821-7825</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>▶ Yield strength values of Al–4Cu alloy were analysed via Hall–Petch relation. ▶ H–P analysis revealed apparently high ‘
σ
0’ (170
MPa) and a high ‘
k’ (
0.13
MPa
m
) ▶ Precipitates and oxide particles are the likely reason for such a high values. ▶ True ‘
σ
0’ and ‘
k’ were evaluated by considering only the grain size contribution. ▶ This agrees with values taken from pure Al.
Mechanical properties of bulk nanocrystalline Al–4Cu alloys with grain sizes from 47 to 105
nm, synthesized by mechanically alloying followed by vacuum hot pressing at different temperatures, were analysed through Hall–Petch relation. Hall–Petch analysis revealed a high frictional stress (170
MPa) and a high positive slope (
0.13
MPa
m
) as compared to pure Al, which has a frictional stress (15–30
MPa) and a slope (
0.06
–
0.09
MPa
m
). From a detailed evaluation of different strengthening mechanisms it is inferred that the Al
2Cu precipitates and oxide particles are the likely reason for such high values of frictional stress and slope.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2010.08.070</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0921-5093 |
| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2010-11, Vol.527 (29), p.7821-7825 |
| issn | 0921-5093 1873-4936 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_849442684 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Aluminum Aluminum alloys Aluminum base alloys Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Grain size Hall–Petch relation Hot pressing Mechanical alloying Mechanical and acoustical properties of condensed matter Mechanical properties of nanoscale materials Nanostructured materials Oxides Physics Precipitates Precipitation Stresses Yield strength |
| title | On the Hall–Petch relationship in a nanostructured Al–Cu alloy |
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