Effect of Hot Extrusion on Interfacial Microstructure and Tensile Properties of SiC(p)/2009Al Composites Fabricated at Different Hot Pressing Temperatures

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	Effect of Hot Extrusion on Interfacial Microstructure and Tensile Properties of SiC(p)/2009Al Composites Fabricated at Different Hot Pressing Temperatures
	P. Jin; B. L. Xiao; Q. Z. Wang; Z. Y. Ma; Y. Liu; S. Li
	2011
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	27 期号:6 页码:518-524
摘要	The effects of hot extrusion on the interfacial microstructures and tensile properties of 15 vol.% SiC(p)/2009Al composites fabricated at different hot pressing temperatures were investigated. After hot extrusion, the relative density of the composites increased, the SiC particle distribution became more uniform, and the SiC particles tended to align along the extrusion direction. Furthermore, the interface bonding was improved after hot extrusion; however, the extrusion exerted no obvious effect on the interfacial reaction products formed during sintering process. Tensile tests indicated that the mechanical properties of the composites were improved significantly after extrusion. Fractography revealed that the fracture mechanism of the extruded composites fabricated at the hot pressing temperatures below 540 degrees C was mainly the interfacial debonding. For the extruded composites fabricated at 560-600 degrees C, the fracture was the matrix ductile fracture and the SiC particle fracture. When the composites were hot pressed at or above 620 degrees C, after extrusion, the fracture mechanism of the composites was the matrix ductile fracture, the interface cracking and the SiC particle fracture.
部门归属	[jin, peng; xiao, bolu; wang, quanzhao; ma, zongyi; liu, yue; li, shu] chinese acad sci, inst met res, shenyang 110016, peoples r china.;ma, zy (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;zyma@imr.ac.cn
关键词	Aluminum Matrix Composite Hot Extrusion Microstructure Mechanical Properties Aluminum-matrix Composites Mechanical-properties Alloy Composites Sic Particles Strength Porosity
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30427
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Jin,B. L. Xiao,Q. Z. Wang,et al. Effect of Hot Extrusion on Interfacial Microstructure and Tensile Properties of SiC(p)/2009Al Composites Fabricated at Different Hot Pressing Temperatures[J]. Journal of Materials Science & Technology,2011,27(6):518-524.
APA	P. Jin,B. L. Xiao,Q. Z. Wang,Z. Y. Ma,Y. Liu,&S. Li.(2011).Effect of Hot Extrusion on Interfacial Microstructure and Tensile Properties of SiC(p)/2009Al Composites Fabricated at Different Hot Pressing Temperatures.Journal of Materials Science & Technology,27(6),518-524.
MLA	P. Jin,et al."Effect of Hot Extrusion on Interfacial Microstructure and Tensile Properties of SiC(p)/2009Al Composites Fabricated at Different Hot Pressing Temperatures".Journal of Materials Science & Technology 27.6(2011):518-524.