Anisotropic spall behavior of CNT/2024Al composites under plate impact

doi:10.1016/j.carbon.2020.08.007

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Anisotropic spall behavior of CNT/2024Al composites under plate impact
	Cheng, JC ; Chai, HW ; Fan, GL ; Li, ZQ ; Xie, HL ; Tan, ZQ ; Bie, BX ; Huang, JY ; Luo, SN
刊名	CARBON
	2020
卷号	170 页码:589-599
关键词	FLAKE POWDER-METALLURGY STRAIN-RATE MECHANICAL-PROPERTIES ALUMINUM DEFORMATION DAMAGE FRACTURE FOAMS TENSILE
ISSN号	0008-6223
DOI	10.1016/j.carbon.2020.08.007
文献子类	期刊论文
英文摘要	Plate impact experiments are conducted on the carbon nanotube (CNT) reinforced 2024Al composite fabricated by flake powder metallurgy and hot extrusion, to investigate the effects of microstructural anisotropy on its dynamic deformation and damage, as well as the role of CNTs. Three loading directions are explored with the loading axis being parallel to the extrusion, transverse or normal direction. Free-surface velocity histories are measured to evaluate the mechanical properties and damage processes, including the Hugoniot elastic limit (HEL; similar to 0.8 GPa) and dynamic spall strengths (1.4 - 1.9 GPa). Postmortem samples are characterized with synchrotron X-ray computed tomography and scanning electron microscopy. The microstructural anisotropy of the composite (in terms of the orientation of lamellar microstructures) has a negligible effect on HEL but induces an anisotropy in spall strengths; spall strength is the highest for loading along the extrusion direction, the long axis of the lamellar microstructures. CNTs appear to increase the spall strengths of the 2024Al matrix, in contrast to other reinforcing fibers/particles. The crack propagation direction and damage features can be correlated with collinear propagation of microcracks following the lamellar microstructures. (C) 2020 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32707]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 2.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China 3.Peac Inst Multiscale Sci, Chengdu 610031, Sichuan, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
推荐引用方式 GB/T 7714	Cheng, JC,Chai, HW,Fan, GL,et al. Anisotropic spall behavior of CNT/2024Al composites under plate impact[J]. CARBON,2020,170:589-599.
APA	Cheng, JC.,Chai, HW.,Fan, GL.,Li, ZQ.,Xie, HL.,...&Luo, SN.(2020).Anisotropic spall behavior of CNT/2024Al composites under plate impact.CARBON,170,589-599.
MLA	Cheng, JC,et al."Anisotropic spall behavior of CNT/2024Al composites under plate impact".CARBON 170(2020):589-599.