Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy
The microstructure and tensile property of the hypoeutectic Al-Si alloy with and without microalloying of Sc and Zr were studied by means of the optical microscope (OM), Transmission electron microscopy (TEM) and the tensile test. The focus of this work is the effect of microalloying and tensile def...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420301356 |
| _version_ | 1819062959077326848 |
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| author | Jiqiang Chen Chao Liu Feng Wen Qiongyu Zhou Hongjin Zhao Renguo Guan |
| author_facet | Jiqiang Chen Chao Liu Feng Wen Qiongyu Zhou Hongjin Zhao Renguo Guan |
| author_sort | Jiqiang Chen |
| collection | DOAJ |
| description | The microstructure and tensile property of the hypoeutectic Al-Si alloy with and without microalloying of Sc and Zr were studied by means of the optical microscope (OM), Transmission electron microscopy (TEM) and the tensile test. The focus of this work is the effect of microalloying and tensile deformation on the internal structure (i.e. nanoscale precipitates and the stacking faults) in eutectic Si phase. The results show that the nanoscale precipitates are evident in eutectic Si phase in Al-Si alloy without any special heat treatment or modification. The additions of Sc and Zr into the Al-Si alloy increased the size of the nano precipitates, and significantly promoted the formation of the stacking faults inside the eutectic Si phase. Moreover, the eutectic Si phase experienced twinning deformation during the tensile deformation of the Al-Si based alloy, and this twinning deformation was more pronounced with increasing the tensile strength of the Al-Si based alloy. It is proposed that the deformation of the eutectic Si phase also contributed to the property and the ductility of the Al-Si based alloy. |
| first_indexed | 2024-12-21T15:07:03Z |
| format | Article |
| id | doaj.art-b65557abd5484554b3fd1548b880823f |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-21T15:07:03Z |
| publishDate | 2020-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-b65557abd5484554b3fd1548b880823f2022-12-21T18:59:24ZengElsevierJournal of Materials Research and Technology2238-78542020-05-019346824691Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloyJiqiang Chen0Chao Liu1Feng Wen2Qiongyu Zhou3Hongjin Zhao4Renguo Guan5Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; Dongguan Eontec Co., Ltd, Dongguan 523662, China; Corresponding authors.Faculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaFaculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Materials Science and Energy Engineering, Foshan University, Foshan 528000, ChinaFaculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaFaculty of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; Corresponding authors.The microstructure and tensile property of the hypoeutectic Al-Si alloy with and without microalloying of Sc and Zr were studied by means of the optical microscope (OM), Transmission electron microscopy (TEM) and the tensile test. The focus of this work is the effect of microalloying and tensile deformation on the internal structure (i.e. nanoscale precipitates and the stacking faults) in eutectic Si phase. The results show that the nanoscale precipitates are evident in eutectic Si phase in Al-Si alloy without any special heat treatment or modification. The additions of Sc and Zr into the Al-Si alloy increased the size of the nano precipitates, and significantly promoted the formation of the stacking faults inside the eutectic Si phase. Moreover, the eutectic Si phase experienced twinning deformation during the tensile deformation of the Al-Si based alloy, and this twinning deformation was more pronounced with increasing the tensile strength of the Al-Si based alloy. It is proposed that the deformation of the eutectic Si phase also contributed to the property and the ductility of the Al-Si based alloy.http://www.sciencedirect.com/science/article/pii/S2238785420301356Al alloyEutectic SiNanoscale precipitatesMicroalloyingTwinning |
| spellingShingle | Jiqiang Chen Chao Liu Feng Wen Qiongyu Zhou Hongjin Zhao Renguo Guan Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy Journal of Materials Research and Technology Al alloy Eutectic Si Nanoscale precipitates Microalloying Twinning |
| title | Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy |
| title_full | Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy |
| title_fullStr | Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy |
| title_full_unstemmed | Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy |
| title_short | Effect of microalloying and tensile deformation on the internal structures of eutectic Si phase in Al-Si alloy |
| title_sort | effect of microalloying and tensile deformation on the internal structures of eutectic si phase in al si alloy |
| topic | Al alloy Eutectic Si Nanoscale precipitates Microalloying Twinning |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420301356 |
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