Micro-structural and tensile strength analyses on the magnesium matrix composites reinforced with coated carbon fiber

IMR OpenIR

	Micro-structural and tensile strength analyses on the magnesium matrix composites reinforced with coated carbon fiber
	Z. L. Pei; K. Li; J. Gong; N. L. Shi; E. Elangovan; C. Sun
	2009
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	44 期号:15 页码:4124-4131
摘要	Magnesium matrix composites reinforced with SiO(2) coated carbon fibers have been investigated, with an emphasis given on the relation between the material strength and interfacial microstructure. The composites were studied as a function of aluminium (Al) content that is varied between 0 and 9 wt%. The obtained results indicate that the reactivity at the C/Mg-Al interface of the composite can be controlled by varying the Al content. The low Al content in C/Mg-1Al has been completely dissolved in the matrix with no segregation even after solidification, leading to the best mechanical performance. If the Al content is increased to >= 3 wt%(composites such as C/AZ31 and C/AZ91), the SiO(2) coatings are fully depleted due to an extensive formation of carbides at the interface. The precipitates are further identified as Al(2)MgC(2) phase that is similar to binary carbide Al(4)C(3). SiO(2) coating on the fiber layer prior to fabrication of composite is found to be a promising way to suppress the carbide formation and enable the use of Mg-Al matrix with appropriate Al content.
部门归属	[pei, z. l.; li, k.; gong, j.; shi, n. l.; sun, c.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [elangovan, e.] univ nova lisboa, fct,cenimat 13n, dept mat sci, p-2829516 caparica, portugal.;gong, j (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;zlpei@imr.ac.cn jgong@imr.ac.cn
关键词	Mechanical-properties Graphite-fiber Interface Alloys Coatings Surface
URL	查看原文
WOS记录号	WOS:000266911600029
引用统计	被引频次：59[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/321006/32235
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. L. Pei,K. Li,J. Gong,et al. Micro-structural and tensile strength analyses on the magnesium matrix composites reinforced with coated carbon fiber[J]. Journal of Materials Science,2009,44(15):4124-4131.
APA	Z. L. Pei,K. Li,J. Gong,N. L. Shi,E. Elangovan,&C. Sun.(2009).Micro-structural and tensile strength analyses on the magnesium matrix composites reinforced with coated carbon fiber.Journal of Materials Science,44(15),4124-4131.
MLA	Z. L. Pei,et al."Micro-structural and tensile strength analyses on the magnesium matrix composites reinforced with coated carbon fiber".Journal of Materials Science 44.15(2009):4124-4131.