Microstructure and mechanical behaviour of a SiC particles reinforced Al-5Cu composite under dynamic loading

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	Microstructure and mechanical behaviour of a SiC particles reinforced Al-5Cu composite under dynamic loading
	Y. X. Lu; X. M. Meng; C. S. Lee; R. K. Y. Li; C. G. Huang; J. K. L. Lai
	1999
发表期刊	Journal of Materials Processing Technology
ISSN	0924-0136
卷号	94 期号:2-3 页码:175-178
摘要	The mechanical behaviour of a composite of Al-5Cu matrix reinforced with 15% SiC particles was studied at different strain rates from 1 x10(-3) to 2.5x10(3) s(-1) using both a conventional universal testing machine (for low strain-rate tests) and a split Hopkinson bar (for tests at dynamic strain rates), Whilst the yield stress of the composite increases as the strain rate increases, the maximum flow stresses, 440 MPa for compression and 450 MPa for tension, are independent of strain rate. The microstructures and defect structures of the deformed composite were studied with bath scanning electron microscopy and transmission electron microscopy and were correlated to the observed mechanical behaviour. Fracture surface studies of samples after dynamic tensile testing indicates that failure of the composite is controlled by ductile failure of the aluminium matrix by the nucleation, growth and coalescence of voids. (C) 1999 Elsevier Science S.A. All rights reserved.
部门归属	city univ hong kong, dept phys & mat sci, kowloon, hong kong. chinese acad sci, inst met res, atom imaging solids lab, shenyang 110015, peoples r china. chinese acad sci, inst mech res, shenyang 110015, peoples r china.;lee, cs (reprint author), city univ hong kong, dept phys & mat sci, tat chee ave, kowloon, hong kong
关键词	Aluminium Composite Silicon Carbide Particle Dynamic Loading Microstructure Hopkinson Bar Metal-matrix Composite Fracture
URL	查看原文
WOS记录号	WOS:000083300600014
引用统计	被引频次：17[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/321006/37443
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. X. Lu,X. M. Meng,C. S. Lee,et al. Microstructure and mechanical behaviour of a SiC particles reinforced Al-5Cu composite under dynamic loading[J]. Journal of Materials Processing Technology,1999,94(2-3):175-178.
APA	Y. X. Lu,X. M. Meng,C. S. Lee,R. K. Y. Li,C. G. Huang,&J. K. L. Lai.(1999).Microstructure and mechanical behaviour of a SiC particles reinforced Al-5Cu composite under dynamic loading.Journal of Materials Processing Technology,94(2-3),175-178.
MLA	Y. X. Lu,et al."Microstructure and mechanical behaviour of a SiC particles reinforced Al-5Cu composite under dynamic loading".Journal of Materials Processing Technology 94.2-3(1999):175-178.