Synchronous improvement in thermal conductivity and mechanical properties of Al-7Si-0.6Fe-0.5Zn cast alloy by B/La/Sr composite modification
In this paper, the effects of four modification processes (B, Sr, B/Sr and B/La/Sr modification process) on the thermal conductivity and mechanical properties of base alloy (Al-7Si-0.6Fe-0.5Zn) were systematically studied. Compared with the base alloy, different modification processes could synchron...
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| Veröffentlicht in: | Materials research express 2020-08, Vol.7 (8), p.86501 |
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| creator | Gan, Junqi Huang, Yujian Du, Jun Wen, Cheng Liu, Jing |
| description | In this paper, the effects of four modification processes (B, Sr, B/Sr and B/La/Sr modification process) on the thermal conductivity and mechanical properties of base alloy (Al-7Si-0.6Fe-0.5Zn) were systematically studied. Compared with the base alloy, different modification processes could synchronously improve the thermal conductivity and integrated mechanical properties by different degree. The synchronous improvement of B/0.15La/Sr composite modified alloy was the highest among all modified alloys, and the increasing rate of thermal conductivity, elongation and UTS were 25.6%, 150.2% and 26.8%, respectively. The microstructure variation was the main reason for the synchronous improvement in thermal conductivity and integrated mechanical properties. Especially, the morphology variation of the eutectic Si phases from flak to fiber could significantly improve the thermal conductivity and integrated mechanical properties. |
| doi_str_mv | 10.1088/2053-1591/aba8df |
| format | Article |
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Compared with the base alloy, different modification processes could synchronously improve the thermal conductivity and integrated mechanical properties by different degree. The synchronous improvement of B/0.15La/Sr composite modified alloy was the highest among all modified alloys, and the increasing rate of thermal conductivity, elongation and UTS were 25.6%, 150.2% and 26.8%, respectively. The microstructure variation was the main reason for the synchronous improvement in thermal conductivity and integrated mechanical properties. Especially, the morphology variation of the eutectic Si phases from flak to fiber could significantly improve the thermal conductivity and integrated mechanical properties.</description><identifier>ISSN: 2053-1591</identifier><identifier>EISSN: 2053-1591</identifier><identifier>DOI: 10.1088/2053-1591/aba8df</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Al-Si alloys ; Alloys ; Casting alloys ; composite modification ; Elongation ; Heat conductivity ; Heat transfer ; Mechanical properties ; Morphology ; synchronous improvement ; Thermal conductivity</subject><ispartof>Materials research express, 2020-08, Vol.7 (8), p.86501</ispartof><rights>2020 The Author(s). Published by IOP Publishing Ltd</rights><rights>2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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Especially, the morphology variation of the eutectic Si phases from flak to fiber could significantly improve the thermal conductivity and integrated mechanical properties.</description><subject>Al-Si alloys</subject><subject>Alloys</subject><subject>Casting alloys</subject><subject>composite modification</subject><subject>Elongation</subject><subject>Heat conductivity</subject><subject>Heat transfer</subject><subject>Mechanical properties</subject><subject>Morphology</subject><subject>synchronous improvement</subject><subject>Thermal conductivity</subject><issn>2053-1591</issn><issn>2053-1591</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>DOA</sourceid><recordid>eNp9kU9vFCEYxidGE5vau0cSE09Ol78DHGtjtckmHtZeeiEMMC6bGRiBbZzv4IeWdUz10PQC5OV5fi-8T9O8RfASQSE2GDLSIibRRvda2OFFc_ZYevnf-XVzkfMBQoi5JAx3Z82v3RLMPsUQjxn4aU7xwU0uFOADKHuXJj0CE4M9muIffFmADhZMzux18KbeVcPsUvEugziAq7HlO9_Cy-7G1ZXdB2B0LkCPY1xAv4CPm63e7FJFTnPMvjgwReuHiio-hjfNq0GP2V383c-bu5tP366_tNuvn2-vr7atoZSX1vVSaEoYc4Zrp_kgGWO2J1hzYRkfkOVcYmQxJ70cmKHSGMJ72XcGCtk7ct7crlwb9UHNyU86LSpqr_4UYvqudP2TGZ0iHUW9lQYjRig2SNZ5126UIFdZVFbWu5VVJ_Hj6HJRh3hMoT5fYSYIJZByVlVwVZkUc05ueOyKoDpFqE4ZqVNGao2wWj6sFh_nf8xn5O-fkE_pp-JKKCg6BpGaq_A3Tr-qIA</recordid><startdate>20200801</startdate><enddate>20200801</enddate><creator>Gan, Junqi</creator><creator>Huang, Yujian</creator><creator>Du, Jun</creator><creator>Wen, Cheng</creator><creator>Liu, Jing</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</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>HCIFZ</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-1505-447X</orcidid></search><sort><creationdate>20200801</creationdate><title>Synchronous improvement in thermal conductivity and mechanical properties of Al-7Si-0.6Fe-0.5Zn cast alloy by B/La/Sr composite modification</title><author>Gan, Junqi ; 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| subjects | Al-Si alloys Alloys Casting alloys composite modification Elongation Heat conductivity Heat transfer Mechanical properties Morphology synchronous improvement Thermal conductivity |
| title | Synchronous improvement in thermal conductivity and mechanical properties of Al-7Si-0.6Fe-0.5Zn cast alloy by B/La/Sr composite modification |
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