Microstructure evolution and elemental diffusion of SiCp/Al-Cu-Mg composites prepared from elemental powder during hot pressing

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	Microstructure evolution and elemental diffusion of SiCp/Al-Cu-Mg composites prepared from elemental powder during hot pressing
	Q. Zhang; B. L. Xiao; Z. Y. Liu; Z. Y. Ma
	2011
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	46 期号:21 页码:6783-6793
摘要	15vol%SiCp/Al-Cu-Mg composites were fabricated by hot pressing method using pure elemental powders. Microstructure evolution and elemental diffusion of Cu and Mg were studied. The microstructure of as-hot pressed composites and the elemental distribution of the composites before and after solution treatment were also investigated. The results showed that there were two types of eutectic liquid phases with different compositions after the compact was heated to 580 degrees C. After the compact was held at 580 degrees C for 60 min, the eutectic liquid was absorbed into the Al matrix and some equilibrium liquid phases formed in the boundaries of the initial Al particles. Meanwhile, Cu was homogeneously distributed in the Al particles while Mg tended to be distributed near the boundaries of the initial Al particles and in the SiC clusters. The presence of Al(2)Cu, Mg(2)Si, and some oxides of Mg was identified in the as-hot pressed composite. After solution treatment, Al(2)Cu dissolved into the Al matrix, however, some Mg-rich compounds (silicide and oxide of Mg) did not dissolve into the matrix completely.
部门归属	[zhang, q.; xiao, b. l.; liu, z. y.; ma, z. y.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;xiao, bl (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;blxiao@imr.ac.cn
关键词	Metal-matrix Composites Reinforced Aluminum-alloy Mechanical-properties Solution Temperature Tensile Properties Aging Behavior Sic Composites Particulate Al Magnesium
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WOS记录号	WOS:000293757000003
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30898
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Zhang,B. L. Xiao,Z. Y. Liu,et al. Microstructure evolution and elemental diffusion of SiCp/Al-Cu-Mg composites prepared from elemental powder during hot pressing[J]. Journal of Materials Science,2011,46(21):6783-6793.
APA	Q. Zhang,B. L. Xiao,Z. Y. Liu,&Z. Y. Ma.(2011).Microstructure evolution and elemental diffusion of SiCp/Al-Cu-Mg composites prepared from elemental powder during hot pressing.Journal of Materials Science,46(21),6783-6793.
MLA	Q. Zhang,et al."Microstructure evolution and elemental diffusion of SiCp/Al-Cu-Mg composites prepared from elemental powder during hot pressing".Journal of Materials Science 46.21(2011):6783-6793.