An atomistic perspective on twinning phenomena in nano-enhanced fcc metals

被引:35
作者
Sansoz, Frederic [1 ,2 ]
Huang, Hanchen [3 ]
Warner, Derek H. [4 ]
机构
[1] Univ Vermont, Sch Engn, Burlington, VT 05405 USA
[2] Univ Vermont, Mat Sci Program, Burlington, VT USA
[3] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY USA
[4] Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14853 USA
基金
美国国家科学基金会;
关键词
D O I
10.1007/s11837-008-0124-x
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Twin boundaries exist in bulk metals, and they are even more common in metallic nanomaterials. Molecular simulation has made it possible to achieve a predictive understanding of the atomic mechanisms leading to the enhanced properties of nano-twinned metals. Taking nanowires as prototypes, this paper presents an atomistic view of twin structure and its important role in synthesis and in mechanical deformation.
引用
收藏
页码:79 / 84
页数:6
相关论文
共 43 条
[1]   Strengthening in gold nanopillars with nanoscale twins [J].
Afanasyev, Konstantin A. ;
Sansoz, Frederic .
NANO LETTERS, 2007, 7 (07) :2056-2062
[2]   Shape, orientation, and stability of twinned gold nanorods [J].
Barnard, A. S. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (05) :1385-1390
[3]   An atomistic study of the strength of an extended-dislocation barrier [J].
Baskes, MI ;
Hoagland, RG ;
Tsuji, T .
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 1998, 6 (01) :9-18
[4]   ON THE ASYMMETRICAL DISSOCIATION OF LOMER DISLOCATIONS [J].
BONNEVILLE, J ;
DOUIN, J .
PHILOSOPHICAL MAGAZINE LETTERS, 1990, 62 (04) :247-251
[5]   Deformation mechanisms of face-centered-cubic metal nanowires with twin boundaries [J].
Cao, A. J. ;
Wei, Y. G. ;
Mao, Scott X. .
APPLIED PHYSICS LETTERS, 2007, 90 (15)
[6]   Atomistic simulations of the mechanical behavior of fivefold twinned nanowires [J].
Cao, Ajing ;
Wei, Yueguang .
PHYSICAL REVIEW B, 2006, 74 (21)
[7]   Repulsive force between screw dislocation and coherent twin boundary in aluminum and copper [J].
Chen, Zhiming ;
Jin, Zhaohui ;
Gao, Huajian .
PHYSICAL REVIEW B, 2007, 75 (21)
[8]   Multiscale modelling of dislocation/grain boundary interactions. II. Screw dislocations impinging on tilt boundaries in Al [J].
Dewald, M. P. ;
Curtin, W. A. .
PHILOSOPHICAL MAGAZINE, 2007, 87 (30) :4615-4641
[9]   Yield strength asymmetry in metal nanowires [J].
Diao, JK ;
Gall, K ;
Dunn, ML .
NANO LETTERS, 2004, 4 (10) :1863-1867
[10]  
Farkas D, 2001, PHILOS MAG A, V81, P1241, DOI 10.1080/01418610110033984