Grain boundary segregation and precipitation in aluminium alloys
The solute enrichment at the grain boundary determined by TEM with a nanoprobe can only be understood qualitatively. EDS-analysis in combination with electron diffraction proves that precipitates with a Mg/Si-ratio of approx1.3 and a structure similar to the Q-phase (at larger aging times) are prese...
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| Veröffentlicht in: | Scripta materialia 2001-02, Vol.44 (2), p.281-286 |
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| creator | de Hass, M. De Hosson, J.Th.M. |
| description | The solute enrichment at the grain boundary determined by TEM with a nanoprobe can only be understood qualitatively. EDS-analysis in combination with electron diffraction proves that precipitates with a Mg/Si-ratio of approx1.3 and a structure similar to the Q-phase (at larger aging times) are present at the grain boundaries of AA6061. The Cu-content is lower than the stoichiometric value, which may indicate that the Q-phase is preceded by the beta -phase. The model originally developed for 7XXX-series aluminium alloys is applied to AA6061 and AA7050. Predicted values of the GB precipitate growth are in fair agreement with experimental ones. Calculated inter-distances are in between measured longitudinal and transveral inter-distances. This is explained by the model assuming a square collector plate while a rectangular shape is expected. |
| doi_str_mv | 10.1016/S1359-6462(00)00577-7 |
| format | Article |
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EDS-analysis in combination with electron diffraction proves that precipitates with a Mg/Si-ratio of approx1.3 and a structure similar to the Q-phase (at larger aging times) are present at the grain boundaries of AA6061. The Cu-content is lower than the stoichiometric value, which may indicate that the Q-phase is preceded by the beta -phase. The model originally developed for 7XXX-series aluminium alloys is applied to AA6061 and AA7050. Predicted values of the GB precipitate growth are in fair agreement with experimental ones. Calculated inter-distances are in between measured longitudinal and transveral inter-distances. This is explained by the model assuming a square collector plate while a rectangular shape is expected.</description><identifier>ISSN: 1359-6462</identifier><identifier>EISSN: 1872-8456</identifier><identifier>DOI: 10.1016/S1359-6462(00)00577-7</identifier><language>eng</language><publisher>New York, NY: Elsevier Ltd</publisher><subject>Aluminum alloys ; Applied sciences ; Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Grain boundaries ; Materials science ; Metals. 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EDS-analysis in combination with electron diffraction proves that precipitates with a Mg/Si-ratio of approx1.3 and a structure similar to the Q-phase (at larger aging times) are present at the grain boundaries of AA6061. The Cu-content is lower than the stoichiometric value, which may indicate that the Q-phase is preceded by the beta -phase. The model originally developed for 7XXX-series aluminium alloys is applied to AA6061 and AA7050. Predicted values of the GB precipitate growth are in fair agreement with experimental ones. Calculated inter-distances are in between measured longitudinal and transveral inter-distances. This is explained by the model assuming a square collector plate while a rectangular shape is expected.</description><subject>Aluminum alloys</subject><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Grain boundaries</subject><subject>Materials science</subject><subject>Metals. Metallurgy</subject><subject>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</subject><subject>Physics</subject><subject>Precipitation</subject><subject>Segregation</subject><subject>Solid-phase precipitation</subject><subject>Transmission electron microscopy</subject><issn>1359-6462</issn><issn>1872-8456</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-BKEgiB6qk-_2pLLoKix4UM8hTdMl0i-TVth_b3a7evU0w_C8M8yD0DmGGwxY3L5hyvNUMEGuAK4BuJSpPEAznEmSZoyLw9j_IsfoJIRPABCY4Bm6X3rt2qToxrbUfpMEu_Z2rQfXtYluy6T31rjeDdMkkroeG9e6sYld3W3CKTqqdB3s2b7O0cfT4_viOV29Ll8WD6vUMEyHlJkMBBTUcmGpyQlUrCAyK6CoWAbSUE40pVoWQpAMZ5xBznlluTFloTm3dI4up729775GGwbVuGBsXevWdmNQREieU5JHkE-g8V0I3laq966JvykMautL7XyprQwFoHa-lIy5i_0BHYyuK69b48JfOI9JwiJ1N1E2_vrtrFfBONsaW7poalBl5_658wM0236C</recordid><startdate>20010202</startdate><enddate>20010202</enddate><creator>de Hass, M.</creator><creator>De Hosson, J.Th.M.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20010202</creationdate><title>Grain boundary segregation and precipitation in aluminium alloys</title><author>de Hass, M. ; De Hosson, J.Th.M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c413t-4c8060b3e56e3c920f4b278b0bf4807c352a33a7b662818540955fe5ccdba55e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Aluminum alloys</topic><topic>Applied sciences</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Grain boundaries</topic><topic>Materials science</topic><topic>Metals. Metallurgy</topic><topic>Phase diagrams and microstructures developed by solidification and solid-solid phase transformations</topic><topic>Physics</topic><topic>Precipitation</topic><topic>Segregation</topic><topic>Solid-phase precipitation</topic><topic>Transmission electron microscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Hass, M.</creatorcontrib><creatorcontrib>De Hosson, J.Th.M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Scripta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Hass, M.</au><au>De Hosson, J.Th.M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Grain boundary segregation and precipitation in aluminium alloys</atitle><jtitle>Scripta materialia</jtitle><date>2001-02-02</date><risdate>2001</risdate><volume>44</volume><issue>2</issue><spage>281</spage><epage>286</epage><pages>281-286</pages><issn>1359-6462</issn><eissn>1872-8456</eissn><abstract>The solute enrichment at the grain boundary determined by TEM with a nanoprobe can only be understood qualitatively. 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| ispartof | Scripta materialia, 2001-02, Vol.44 (2), p.281-286 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminum alloys Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology Grain boundaries Materials science Metals. Metallurgy Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Precipitation Segregation Solid-phase precipitation Transmission electron microscopy |
| title | Grain boundary segregation and precipitation in aluminium alloys |
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