Screw-rotation twinning through helical movement of triple-partials

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	Screw-rotation twinning through helical movement of triple-partials
	P. Liu; K. Du; J. X. Zhang; L. H. Wang; Y. H. Yue; E. Ma; Y. F. Zhang; Z. Zhang; M. W. Chen; X. D. Han
	2012
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	101 期号:12
摘要	By in situ uniaxial-tensile tests with dynamic and atomic scale observation, we report the quantitative investigation of strain-induced deformation-twinning process through incoherent twin boundary propagation in nanocrystalline Au. The consecutive and quantitative strain maps revealed that a strong compressive strain, up to 5.8%, was formed. A screw-rotation twinning mechanism by consecutive and collective screw-rotations of triple-partials along a [111] screw-axis is proposed. This twin generates a macro-strain of 0.707, same as the conventional shear twins, but in a helical manner. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752747]
部门归属	[liu, pan; wang, lihua; yue, yonghai; zhang, yuefei; zhang, ze; han, xiaodong] beijing univ technol, inst microstruct & properties adv mat, beijing 100124, peoples r china. [du, kui] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [zhang, jianxin] shandong univ, sch mat sci & engn, jinan 250061, peoples r china. [ma, evan] johns hopkins univ, dept mat sci & engn, baltimore, md 21218 usa. [zhang, ze] zhejiang univ, dept mat sci, hangzhou 300038, zhejiang, peoples r china. [chen, mingwei] tohoku univ, wpi adv inst mat res, sendai, miyagi 9808577, japan.;han, xd (reprint author), beijing univ technol, inst microstruct & properties adv mat, beijing 100124, peoples r china.;xdhan@bjut.edu.cn
关键词	Atomic Mechanisms Maximum Strength Grain-boundary Cubic Metals Nanocrystalline Copper Nanowires Gold Microscopy Simulation
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60117
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Liu,K. Du,J. X. Zhang,et al. Screw-rotation twinning through helical movement of triple-partials[J]. Applied Physics Letters,2012,101(12).
APA	P. Liu.,K. Du.,J. X. Zhang.,L. H. Wang.,Y. H. Yue.,...&X. D. Han.(2012).Screw-rotation twinning through helical movement of triple-partials.Applied Physics Letters,101(12).
MLA	P. Liu,et al."Screw-rotation twinning through helical movement of triple-partials".Applied Physics Letters 101.12(2012).