The Sequence of Intermetallics Formation during the Solidification of an Al-Mg-Si Alloy Containing La
A mechanism by which La modifies the Fe-bearing intermetallics in a 6xxx series Al alloy is examined using calorimetry. Thermal events accompanying the formation of various phases are identified by establishing a correspondence between them and microstructures of as-cast alloys. It is concluded that...
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| Veröffentlicht in: | Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2011-03, Vol.42 (3), p.825-833 |
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| container_title | Metallurgical and materials transactions. A, Physical metallurgy and materials science |
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| creator | Hosseinifar, Mehdi Malakhov, Dmitri V. |
| description | A mechanism by which La modifies the Fe-bearing intermetallics in a 6xxx series Al alloy is examined using calorimetry. Thermal events accompanying the formation of various phases are identified by establishing a correspondence between them and microstructures of as-cast alloys. It is concluded that a previously suggested surface adsorption mechanism is unlikely to be operative. During solidification, the addition of lanthanum results in the formation of the La(Al,Si)
2
phase and the depletion of the remaining melt of Si. It is hypothesized that the decreased Si/Fe ratio in the melt caused by the presence of La favors the formation of the
α
-AlFeSi phase, which is less detrimental to the formability of the alloy than the
β
-AlFeSi phase. |
| doi_str_mv | 10.1007/s11661-010-0453-6 |
| format | Article |
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2
phase and the depletion of the remaining melt of Si. It is hypothesized that the decreased Si/Fe ratio in the melt caused by the presence of La favors the formation of the
α
-AlFeSi phase, which is less detrimental to the formability of the alloy than the
β
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2
phase and the depletion of the remaining melt of Si. It is hypothesized that the decreased Si/Fe ratio in the melt caused by the presence of La favors the formation of the
α
-AlFeSi phase, which is less detrimental to the formability of the alloy than the
β
-AlFeSi phase.</description><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Nanotechnology</subject><subject>Structural Materials</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><issn>1073-5623</issn><issn>1543-1940</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1kE1PwzAMhiMEEjD4Adwq7gG7aZPliCY-Jg1x2DhHaZOOTF0yku6wf0-qInHiZEt-H1t-CLlDeEAA8ZgQOUcKCBSqmlF-Rq6wrhhFWcF57kEwWvOSXZLrlHYAgJLxK2I3X7ZY2--j9a0tQlcs_WDj3g66712bipcQ93pwwRfmGJ3fFsOYD70zrnPtNMmU9sVTT9-3dO1y04dTsQh-0M6PyErfkItO98ne_tYZ-Xx53ize6Orjdbl4WtGWYT1Q0TaVkKXpbMlqNHOQQneVkXIuRX7Gcs6bxpq601DbVjSiQYldaQxDCVgCm5H7ae8hhvxSGtQuHKPPJ9WcM8kYMJFDOIXaGFKKtlOH6PY6nhSCGmWqSabKMtUoU_HMlBOTDqMFG_8W_w_9AF49dn4</recordid><startdate>20110301</startdate><enddate>20110301</enddate><creator>Hosseinifar, Mehdi</creator><creator>Malakhov, Dmitri V.</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>4T-</scope><scope>4U-</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0X</scope></search><sort><creationdate>20110301</creationdate><title>The Sequence of Intermetallics Formation during the Solidification of an Al-Mg-Si Alloy Containing La</title><author>Hosseinifar, Mehdi ; Malakhov, Dmitri V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c315t-7cb4792dfe2351d8097af4d99897154e666bbed5fa05ec7b7b191f2dd31901203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Nanotechnology</topic><topic>Structural Materials</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hosseinifar, Mehdi</creatorcontrib><creatorcontrib>Malakhov, Dmitri V.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Docstoc</collection><collection>University Readers</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>STEM Database</collection><collection>ProQuest Pharma Collection</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>SIRS Editorial</collection><jtitle>Metallurgical and materials transactions. A, Physical metallurgy and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hosseinifar, Mehdi</au><au>Malakhov, Dmitri V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Sequence of Intermetallics Formation during the Solidification of an Al-Mg-Si Alloy Containing La</atitle><jtitle>Metallurgical and materials transactions. A, Physical metallurgy and materials science</jtitle><stitle>Metall Mater Trans A</stitle><date>2011-03-01</date><risdate>2011</risdate><volume>42</volume><issue>3</issue><spage>825</spage><epage>833</epage><pages>825-833</pages><issn>1073-5623</issn><eissn>1543-1940</eissn><coden>MMTAEB</coden><abstract>A mechanism by which La modifies the Fe-bearing intermetallics in a 6xxx series Al alloy is examined using calorimetry. Thermal events accompanying the formation of various phases are identified by establishing a correspondence between them and microstructures of as-cast alloys. It is concluded that a previously suggested surface adsorption mechanism is unlikely to be operative. During solidification, the addition of lanthanum results in the formation of the La(Al,Si)
2
phase and the depletion of the remaining melt of Si. It is hypothesized that the decreased Si/Fe ratio in the melt caused by the presence of La favors the formation of the
α
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β
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| subjects | Characterization and Evaluation of Materials Chemistry and Materials Science Materials Science Metallic Materials Nanotechnology Structural Materials Surfaces and Interfaces Thin Films |
| title | The Sequence of Intermetallics Formation during the Solidification of an Al-Mg-Si Alloy Containing La |
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