Microstructures and Tensile Properties of Al-Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

	Microstructures and Tensile Properties of Al-Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process
	Qiu, F.; X. Gao; J. Tang; Y. Y. Gao; S. L. Shu; X. Han; Q. Li and Q. C. Jiang
	2017
发表期刊	Metals
卷号	7 期号:2
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.
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/59163
专题	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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