Shock compression of monocrystalline copper: Experiments, characterization, and analysis

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	Shock compression of monocrystalline copper: Experiments, characterization, and analysis
	B. Y. Cao; D. H. Lassila; C. X. Huang; Y. B. Xu; M. A. Meyers
	2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	527 期号:3 页码:424-434
摘要	Monocrystalline copper samples with [001] and [221] orientations were subjected to shock/recovery experiments at 30 and 57 GPa and 90 K. The slip system activity and the microstructural evolution were investigated. Different defect structures, including dislocations, stacking faults, twins, microbands, and recrystallized grains were observed in the specimens. The residual microstructures were dependent on crystalline orientation and pressure. The differences with crystalline orientations are most likely due to different resolved shear stresses on specific crystalline planes. The geometric relationships between the shock propagation direction and crystalline orientation are presented under uniaxial strain. It is shown that the [2 2 11 orientation, by virtue of having fewer highly activated slip systems, exhibits greater concentration of deformation with more intense shear on the primary system. This, in turn leads to greater local temperature rise and full recrystallization, in spite of the thermodynamic residual temperature of similar to 500 K and rapid cooling (within 20 s) to ambient temperature. The profuse observation of microbands is interpreted in terms of the mechanism proposed by Huang and Gray [J.C. Huang, G.T. Gray III, Acta Metallurgica 37 (1989) 3335-3347]. (C) 2009 Elsevier B.V. All rights reserved.
部门归属	[cao, buyang] johns hopkins univ, dept mech engn, baltimore, md 21218 usa. [lassila, david h.] lawrence livermore natl lab, livermore, ca 94550 usa. [huang, chongxiang; xu, yongbo] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [meyers, marc andre] univ calif san diego, dept mech & aerosp engn, la jolla, ca 92093 usa. [meyers, marc andre] univ calif san diego, dept nanoengn, la jolla, ca 92093 usa.;cao, by (reprint author), johns hopkins univ, dept mech engn, baltimore, md 21218 usa;bcao3@jhu.edu
关键词	Shock Compression Shock Loading Slip Bands Microtwins Microbands Strain Rate History Single-crystals Grain-size Constitutive Description Plastic-deformation Mechanical Response Deformed Metals Loaded Nickel Substructure Recrystallization
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WOS记录号	WOS:000273983800003
引用统计	被引频次：19[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/321006/31013
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Y. Cao,D. H. Lassila,C. X. Huang,et al. Shock compression of monocrystalline copper: Experiments, characterization, and analysis[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010,527(3):424-434.
APA	B. Y. Cao,D. H. Lassila,C. X. Huang,Y. B. Xu,&M. A. Meyers.(2010).Shock compression of monocrystalline copper: Experiments, characterization, and analysis.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(3),424-434.
MLA	B. Y. Cao,et al."Shock compression of monocrystalline copper: Experiments, characterization, and analysis".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.3(2010):424-434.