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Effect of Sr on the microstructure and mechanical properties of hypereutectic Al-Si alloy
The hypereutectic aluminum silicon alloy (Si: 20wt.%) was modified by Al-10%Sr modifier. The results show that Sr has a significant refining effect on both primary and eutectic silicon in aluminum silicon alloy (Si: 20wt.%). When the additional amount of Sr reaches 0.4%, the grain size is refined fr...
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Published in: | Journal of physics. Conference series 2024-01, Vol.2691 (1), p.012066 |
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creator | Teng, Hailin Shi, Weixi Zhou, Yi Wang, Sihan Wu, Fanjie Na, Xiangyu Li, Guimao Hu, Yan |
description | The hypereutectic aluminum silicon alloy (Si: 20wt.%) was modified by Al-10%Sr modifier. The results show that Sr has a significant refining effect on both primary and eutectic silicon in aluminum silicon alloy (Si: 20wt.%). When the additional amount of Sr reaches 0.4%, the grain size is refined from 80-100 μm without modification to 30-50 μm after modification. The morphology of primary silicon has changed from a large plate-like shape to a deformed fine fishbone shape, while eutectic silicon has changed from a long needle shape to a point shape. The X-ray diffraction analysis results indicate that the Al2Si2Sr phase was generated in the modified alloy. The scanning electron microscopy analysis results show that after 0.4% Sr modification, a white triangular-shaped Al2Si2Sr phase appears in the aluminum silicon alloy (Si: 20wt.%) sample, which is the Al-Si-Sr ternary phase analyzed by XRD testing. The tensile testing results show that the Sr modification additional amount is 0.4%, and the tensile strength of aluminum silicon alloy (Si: 20wt.%) has been improved by about 11% from 162 MPa without modification to 200 MPa after modification. |
doi_str_mv | 10.1088/1742-6596/2691/1/012066 |
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The results show that Sr has a significant refining effect on both primary and eutectic silicon in aluminum silicon alloy (Si: 20wt.%). When the additional amount of Sr reaches 0.4%, the grain size is refined from 80-100 μm without modification to 30-50 μm after modification. The morphology of primary silicon has changed from a large plate-like shape to a deformed fine fishbone shape, while eutectic silicon has changed from a long needle shape to a point shape. The X-ray diffraction analysis results indicate that the Al2Si2Sr phase was generated in the modified alloy. The scanning electron microscopy analysis results show that after 0.4% Sr modification, a white triangular-shaped Al2Si2Sr phase appears in the aluminum silicon alloy (Si: 20wt.%) sample, which is the Al-Si-Sr ternary phase analyzed by XRD testing. The tensile testing results show that the Sr modification additional amount is 0.4%, and the tensile strength of aluminum silicon alloy (Si: 20wt.%) has been improved by about 11% from 162 MPa without modification to 200 MPa after modification.</description><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/2691/1/012066</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Aluminum ; Aluminum base alloys ; Casting ; Grain size ; Mechanical properties ; Silicon ; Tensile strength ; Tensile tests</subject><ispartof>Journal of physics. Conference series, 2024-01, Vol.2691 (1), p.012066</ispartof><rights>Published under licence by IOP Publishing Ltd</rights><rights>Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). 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Conference series</title><addtitle>J. Phys.: Conf. Ser</addtitle><description>The hypereutectic aluminum silicon alloy (Si: 20wt.%) was modified by Al-10%Sr modifier. The results show that Sr has a significant refining effect on both primary and eutectic silicon in aluminum silicon alloy (Si: 20wt.%). When the additional amount of Sr reaches 0.4%, the grain size is refined from 80-100 μm without modification to 30-50 μm after modification. The morphology of primary silicon has changed from a large plate-like shape to a deformed fine fishbone shape, while eutectic silicon has changed from a long needle shape to a point shape. The X-ray diffraction analysis results indicate that the Al2Si2Sr phase was generated in the modified alloy. The scanning electron microscopy analysis results show that after 0.4% Sr modification, a white triangular-shaped Al2Si2Sr phase appears in the aluminum silicon alloy (Si: 20wt.%) sample, which is the Al-Si-Sr ternary phase analyzed by XRD testing. The tensile testing results show that the Sr modification additional amount is 0.4%, and the tensile strength of aluminum silicon alloy (Si: 20wt.%) has been improved by about 11% from 162 MPa without modification to 200 MPa after modification.</description><subject>Aluminum</subject><subject>Aluminum base alloys</subject><subject>Casting</subject><subject>Grain size</subject><subject>Mechanical properties</subject><subject>Silicon</subject><subject>Tensile strength</subject><subject>Tensile tests</subject><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNpFkE1PwzAMhiMEEmPwG4jEuTRfTZvjNI0PaRKHwYFTlCWOlqlrRpoe9u9pNTR8sS2_fm09CD1S8kxJ05S0FqyQlZIlk4qWtCSUESmv0Owyub7UTXOL7vp-Twgfo56h75X3YDOOHm8Sjh3OO8CHYFPscxpsHhJg0zl8ALszXbCmxccUj5BygH7a2p3GBoY8mgSLF22xCdi0bTzdoxtv2h4e_vIcfb2sPpdvxfrj9X25WBeBCpaLyntFK-lBWGsq5bbeSQKG1l4pJrcSnGBQC1cRxxtl1Bac44RYS5wHrzifo6ez7_jXzwB91vs4pG48qZmiTVULweSo4mdViMd_ASV6YqgnOnoipSeGmuozQ_4L8UVl2g</recordid><startdate>20240101</startdate><enddate>20240101</enddate><creator>Teng, Hailin</creator><creator>Shi, Weixi</creator><creator>Zhou, Yi</creator><creator>Wang, Sihan</creator><creator>Wu, Fanjie</creator><creator>Na, Xiangyu</creator><creator>Li, Guimao</creator><creator>Hu, Yan</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20240101</creationdate><title>Effect of Sr on the microstructure and mechanical properties of hypereutectic Al-Si alloy</title><author>Teng, Hailin ; Shi, Weixi ; Zhou, Yi ; Wang, Sihan ; Wu, Fanjie ; Na, Xiangyu ; Li, Guimao ; Hu, Yan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i142t-5ff9156fe4cca59dbfd60ea17f9926b6ed42e74d50d389a9bedd300cc0dfef933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Aluminum</topic><topic>Aluminum base alloys</topic><topic>Casting</topic><topic>Grain size</topic><topic>Mechanical properties</topic><topic>Silicon</topic><topic>Tensile strength</topic><topic>Tensile tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Teng, Hailin</creatorcontrib><creatorcontrib>Shi, Weixi</creatorcontrib><creatorcontrib>Zhou, Yi</creatorcontrib><creatorcontrib>Wang, Sihan</creatorcontrib><creatorcontrib>Wu, Fanjie</creatorcontrib><creatorcontrib>Na, Xiangyu</creatorcontrib><creatorcontrib>Li, Guimao</creatorcontrib><creatorcontrib>Hu, Yan</creatorcontrib><collection>Open Access: IOP Publishing Free Content</collection><collection>IOPscience (Open Access)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ProQuest advanced technologies & aerospace journals</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Publicly Available Content database</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><jtitle>Journal of physics. Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Teng, Hailin</au><au>Shi, Weixi</au><au>Zhou, Yi</au><au>Wang, Sihan</au><au>Wu, Fanjie</au><au>Na, Xiangyu</au><au>Li, Guimao</au><au>Hu, Yan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of Sr on the microstructure and mechanical properties of hypereutectic Al-Si alloy</atitle><jtitle>Journal of physics. Conference series</jtitle><addtitle>J. Phys.: Conf. Ser</addtitle><date>2024-01-01</date><risdate>2024</risdate><volume>2691</volume><issue>1</issue><spage>012066</spage><pages>012066-</pages><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>The hypereutectic aluminum silicon alloy (Si: 20wt.%) was modified by Al-10%Sr modifier. The results show that Sr has a significant refining effect on both primary and eutectic silicon in aluminum silicon alloy (Si: 20wt.%). When the additional amount of Sr reaches 0.4%, the grain size is refined from 80-100 μm without modification to 30-50 μm after modification. The morphology of primary silicon has changed from a large plate-like shape to a deformed fine fishbone shape, while eutectic silicon has changed from a long needle shape to a point shape. The X-ray diffraction analysis results indicate that the Al2Si2Sr phase was generated in the modified alloy. The scanning electron microscopy analysis results show that after 0.4% Sr modification, a white triangular-shaped Al2Si2Sr phase appears in the aluminum silicon alloy (Si: 20wt.%) sample, which is the Al-Si-Sr ternary phase analyzed by XRD testing. The tensile testing results show that the Sr modification additional amount is 0.4%, and the tensile strength of aluminum silicon alloy (Si: 20wt.%) has been improved by about 11% from 162 MPa without modification to 200 MPa after modification.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/2691/1/012066</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Aluminum Aluminum base alloys Casting Grain size Mechanical properties Silicon Tensile strength Tensile tests |
title | Effect of Sr on the microstructure and mechanical properties of hypereutectic Al-Si alloy |
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