Adjusting the Si Phase and Forming Nanoprecipitation to Improve the Mechanical Properties of Al-Si-Cu-Mg Alloy by Heat Treatment
文献类型：期刊论文
| 作者 | Hao, Jianfei1; Yu, Baoyi1; Bian, Jiancong1; Liu, Jinmin3; Sun, Wanting2; Shi, Yuanji1; Li, Runxia2 |
| 刊名 | ADVANCED ENGINEERING MATERIALS
 |
| 出版日期 | 2021-02-08 |
| 页码 | 8 |
| 关键词 | Al– Si– Cu– Mg alloy heat treatment mechanical properties microstructure evolution semisolid squeeze casting process |
| ISSN号 | 1438-1656 |
| DOI | 10.1002/adem.202001526 |
| 通讯作者 | Li, Runxia(runxiali@163.com) |
| 英文摘要 | To adjust the morphology of the Si phase and improve the mechanical properties of Al-Si-Cu-Mg alloy formed by semisolid squeeze casting, the effects of solution time on microstructure evolution and mechanical properties are systematically studied. Results show that spheroidization occurs in the Si phase, and the content of Cu in the matrix increases simultaneously after solution treatment at 525 degrees C for 1 h. As solution time increases to 8 h, the content of Cu in the matrix increases from 1.15% to 1.41% and the dislocation density decreases. After an aging treatment at 180 degrees C for 12 h, the beta ', theta ', and Q ' phases precipitate. After heat treatment, the alloy strength value shows a "double peak" phenomenon. After a 1 h solution treatment, the tensile strength of the alloy reaches the first peak, which is mainly ascribed to the large dislocation density induced by the semisolid squeeze casting process. When the solution time is 8 h, the tensile strength of the alloy is 323 MPa and the tensile strength reaches the second peak, which is ascribed to the rounding of the Si phase and the strengthening effects of fine precipitates. |
| 资助项目 | National Natural Science Foundation of China[51674168] ; Key-Area Research and Development Program of Guangdong Province[2020B010186002] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000615790600001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; Key-Area Research and Development Program of Guangdong Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/159189]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Runxia |
| 作者单位 | 1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 2.Dongguan Univ Technol, Sch Mat Sci & Engn, Dongguan 523808, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Jianfei,Yu, Baoyi,Bian, Jiancong,et al. Adjusting the Si Phase and Forming Nanoprecipitation to Improve the Mechanical Properties of Al-Si-Cu-Mg Alloy by Heat Treatment[J]. ADVANCED ENGINEERING MATERIALS,2021:8. |
| APA | Hao, Jianfei.,Yu, Baoyi.,Bian, Jiancong.,Liu, Jinmin.,Sun, Wanting.,...&Li, Runxia.(2021).Adjusting the Si Phase and Forming Nanoprecipitation to Improve the Mechanical Properties of Al-Si-Cu-Mg Alloy by Heat Treatment.ADVANCED ENGINEERING MATERIALS,8. |
| MLA | Hao, Jianfei,et al."Adjusting the Si Phase and Forming Nanoprecipitation to Improve the Mechanical Properties of Al-Si-Cu-Mg Alloy by Heat Treatment".ADVANCED ENGINEERING MATERIALS (2021):8. |
入库方式： OAI收割
来源：金属研究所
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