Cyclic deformation behavior of double-slip-oriented copper single crystals I: coplanar double slip orientation on 011-(1)over-bar-11 side of the stereographic triangle

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	Cyclic deformation behavior of double-slip-oriented copper single crystals I: coplanar double slip orientation on 011-(1)over-bar-11 side of the stereographic triangle
	X. W. Li; Z. G. Wang; S. X. Li
	1999
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	260 期号:1-2 页码:132-138
摘要	The cyclic deformation behaviors of [(2) over bar 33] coplanar double-slip-oriented and [(4) over bar 18 41] single-slip-oriented copper single crystals were investigated at constant plastic shear strain amplitude gamma(pl) in the range of about 10(-4) - 10(-2) at ambient temperature in air. It was revealed that the cyclic deformation behavior of copper single crystal oriented on the 011-(1) over bar 11 side is distinctly dissimilar from that on the 001-(1) over bar 11 and 001-011 sides in the stereographic triangle. The plot of initial hardening rate theta(0.2) against gamma(pl) of [(2) over bar 33] crystal exhibits two regions as presented for single-slip-oriented crystals. The critical strain amplitude (approximate to 3.5 x 10(-3)), corresponding to the occurrence of the secondary hardening stage in the cyclic hardening curve of the [(2) over bar 33] crystal, was found to be an intermediate value between that for single-slip-oriented single crystals and polycrystals. The result shows that the cyclic hardening behavior of the[(2) over bar 33] crystal, as compared with that of single-slip-oriented crystals, is more close to that of polycrystals. Instead of a clear plateau, the cyclic stress-strain (CSS) curves of the [(2) over bar 33] crystals shows a quasi-plateau over the range of about 3.0 x 10(-4) - 2.0 x 10(-3), which would be greatly attributed to the mode of dislocation interactions between slip systems operating in the crystal. The habit plane of two types of deformation bands DBI and DBII, formed in the cyclically deformed [(2) over bar 33] crystal, are perpendicular to each other strictly, and they develop with increasing applied strain amplitude. (C) 1999 Elsevier Science S.A. All rights reserved.
部门归属	acad sinica, inst met res, state key lab fatigue & fracture mat, shenyang 110015, peoples r china.;li, xw (reprint author), acad sinica, inst met res, state key lab fatigue & fracture mat, 72 wenhua rd, shenyang 110015, peoples r china
关键词	Crystals Double-slip-oriented Cyclic Deformation Copper
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WOS记录号	WOS:000078685900014
引用统计	被引频次：32[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/321006/37413
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. W. Li,Z. G. Wang,S. X. Li. Cyclic deformation behavior of double-slip-oriented copper single crystals I: coplanar double slip orientation on 011-(1)over-bar-11 side of the stereographic triangle[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,1999,260(1-2):132-138.
APA	X. W. Li,Z. G. Wang,&S. X. Li.(1999).Cyclic deformation behavior of double-slip-oriented copper single crystals I: coplanar double slip orientation on 011-(1)over-bar-11 side of the stereographic triangle.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,260(1-2),132-138.
MLA	X. W. Li,et al."Cyclic deformation behavior of double-slip-oriented copper single crystals I: coplanar double slip orientation on 011-(1)over-bar-11 side of the stereographic triangle".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 260.1-2(1999):132-138.