Microstructures and tensile properties of Al/2024–Al4Sr composite after hot extrusion and T6 heat treatment
Microstructures and tensile properties of Al-2024 matrix composite containing 10wt% Al4Sr intermetallic have been studied after extrusion process and T6 heat treatment. Microstructural examinations were assessed by the use of optical microscopy, scanning electron microscopy (SEM) and X-ray diffracto...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2015-02, Vol.625, p.303-310 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Emamy, M. Oliayee, M. Tavighi, K. |
| description | Microstructures and tensile properties of Al-2024 matrix composite containing 10wt% Al4Sr intermetallic have been studied after extrusion process and T6 heat treatment. Microstructural examinations were assessed by the use of optical microscopy, scanning electron microscopy (SEM) and X-ray diffractometry. The results showed that changing the matrix from Al to 2024 alloy reduces the length of primary Al4Sr particles and improves ultimate tensile (UTS) values considerably from 206MPa to 321MPa which is based on the formation of Cu-rich intermetallics. Applying extrusion process and T6 heat treatment was found to be very effective in enhancing tensile properties of Al/2024–10Al4Sr composite. In current research, UTS and elongation values were found to be 381MPa and 13.6%, introducing a tough composite. Moreover, the study of fracture surfaces of the hot-extruded composites specimens revealed that ductile mode of fracture is dominant. |
| doi_str_mv | 10.1016/j.msea.2014.12.023 |
| format | Article |
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Microstructural examinations were assessed by the use of optical microscopy, scanning electron microscopy (SEM) and X-ray diffractometry. The results showed that changing the matrix from Al to 2024 alloy reduces the length of primary Al4Sr particles and improves ultimate tensile (UTS) values considerably from 206MPa to 321MPa which is based on the formation of Cu-rich intermetallics. Applying extrusion process and T6 heat treatment was found to be very effective in enhancing tensile properties of Al/2024–10Al4Sr composite. In current research, UTS and elongation values were found to be 381MPa and 13.6%, introducing a tough composite. 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Moreover, the study of fracture surfaces of the hot-extruded composites specimens revealed that ductile mode of fracture is dominant.</description><subject>2024 alloy</subject><subject>Al4Sr intermetallic</subject><subject>Aluminum</subject><subject>Aluminum base alloys</subject><subject>Extrusion</subject><subject>Fractography</subject><subject>Heat treatment</subject><subject>Intermetallics</subject><subject>Materials science</subject><subject>Metal matrix composite</subject><subject>Microstructure</subject><subject>Scanning electron microscopy</subject><subject>Tensile properties</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNotkMtKAzEUhoMoWKsv4CpLNzM9SeYKbkrxBhUX1nWYJic0ZWZSk1Rc-g6-oU9iat2cHw4fP-d8hFwzyBmwarbNh4BdzoEVOeM5cHFCJqypRVa0ojolE2g5y0poxTm5CGELkEgoJ2R4tsq7EP1exb3HQLtR04hjsD3SnXc79NGmtTN03s848OLn63veF6-eKjfsXLARaWcierpxkeJnagrWjX89q4pusIs0-jQHHOMlOTNdH_DqP6fk7f5utXjMli8PT4v5MkNesJjpkjVcrGumG1Pyzui1QcCiVEpxURmOolVQFqxFKACbpqkNX6cwqKHVNYgpuTn2pg_e9xiiHGxQ2PfdiG4fJKvqum1KLtqE3h5RTPd8WPQyKIujQm09qii1s5KBPFiWW3mwLA-WJeMyWRa_5nVz9A</recordid><startdate>20150211</startdate><enddate>20150211</enddate><creator>Emamy, M.</creator><creator>Oliayee, M.</creator><creator>Tavighi, K.</creator><general>Elsevier B.V</general><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20150211</creationdate><title>Microstructures and tensile properties of Al/2024–Al4Sr composite after hot extrusion and T6 heat treatment</title><author>Emamy, M. ; Oliayee, M. ; Tavighi, K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-e241t-d51823b71d8f52afdbfe0e45ccc236f2e39c05419e040e8887f2b888fed09d703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>2024 alloy</topic><topic>Al4Sr intermetallic</topic><topic>Aluminum</topic><topic>Aluminum base alloys</topic><topic>Extrusion</topic><topic>Fractography</topic><topic>Heat treatment</topic><topic>Intermetallics</topic><topic>Materials science</topic><topic>Metal matrix composite</topic><topic>Microstructure</topic><topic>Scanning electron microscopy</topic><topic>Tensile properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Emamy, M.</creatorcontrib><creatorcontrib>Oliayee, M.</creatorcontrib><creatorcontrib>Tavighi, K.</creatorcontrib><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. 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Microstructural examinations were assessed by the use of optical microscopy, scanning electron microscopy (SEM) and X-ray diffractometry. The results showed that changing the matrix from Al to 2024 alloy reduces the length of primary Al4Sr particles and improves ultimate tensile (UTS) values considerably from 206MPa to 321MPa which is based on the formation of Cu-rich intermetallics. Applying extrusion process and T6 heat treatment was found to be very effective in enhancing tensile properties of Al/2024–10Al4Sr composite. In current research, UTS and elongation values were found to be 381MPa and 13.6%, introducing a tough composite. Moreover, the study of fracture surfaces of the hot-extruded composites specimens revealed that ductile mode of fracture is dominant.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2014.12.023</doi><tpages>8</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2015-02, Vol.625, p.303-310 |
| issn | 0921-5093 1873-4936 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | 2024 alloy Al4Sr intermetallic Aluminum Aluminum base alloys Extrusion Fractography Heat treatment Intermetallics Materials science Metal matrix composite Microstructure Scanning electron microscopy Tensile properties |
| title | Microstructures and tensile properties of Al/2024–Al4Sr composite after hot extrusion and T6 heat treatment |
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