Microstructures and Tensile Properties of Al-Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process
文献类型：期刊论文
| 作者 | Qiu, F.; X. Gao; J. Tang; Y. Y. Gao; S. L. Shu; X. Han; Q. Li and Q. C. Jiang |
| 刊名 | Metals
 |
| 出版日期 | 2017 |
| 卷号 | 7期号:2 |
| 英文摘要 | The nano-sized SiCp/Al-Cu composites were successfully fabricated by combining semisolid stirring with ball milling technology. Microstructures were examined by an olympus optical microscope (OM), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Tensile properties were studied at room temperature. The results show that the alpha-Al dendrites of the composites were strongly refined, especially in the composite with 3 wt. % nano-sized SiCp, of which the morphology of the alpha-Al changes from 200 mu m dendritic crystal to 90 mu m much finer equiaxial grain. The strength and ductility of the composites are improved synchronously with the addition of nano-sized SiCp particles. The as-cast 3 wt. % nano-sized SiCp/Al-Cu composite displays the best tensile properties, i.e., the yield strength, ultimate tensile strength (UTS) and fracture strain increase from 175 MPa, 310 MPa and 4.1% of the as-cast Al-Cu alloy to 220 MPa, 410 MPa and 6.3%, respectively. The significant improvement in the tensile properties of the composites is mainly due to the refinement of the alpha-Al dendrites, nano-sized SiCp strengthening, and good interface combination between the SiCp and Al-Cu alloys. |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/59163]  |
| 专题 | 长春光学精密机械与物理研究所_中科院长春光机所知识产出 |
| 推荐引用方式 GB/T 7714 | Qiu, F.,X. Gao,J. Tang,et al. Microstructures and Tensile Properties of Al-Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process[J]. Metals,2017,7(2). |
| APA | Qiu, F..,X. Gao.,J. Tang.,Y. Y. Gao.,S. L. Shu.,...&Q. Li and Q. C. Jiang.(2017).Microstructures and Tensile Properties of Al-Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process.Metals,7(2). |
| MLA | Qiu, F.,et al."Microstructures and Tensile Properties of Al-Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process".Metals 7.2(2017). |
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