Annealing twins in nanocrystalline fcc metals: A molecular dynamics simulation

被引：40

作者：

Farkas, Diana ^{[1
]}

Bringa, Eduardo

Caro, Alfredo

机构：

[1] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24060 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.75.184111

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report fully three-dimensional atomistic molecular dynamics studies of grain growth kinetics in nanocrystalline Cu of 5 nm average grain size. We observe the formation of annealing twins as part of the grain growth process. The grain size and energy evolution was monitored as a function of time for various temperatures, yielding an activation energy for the process. The atomistic mechanism of annealing twin formation from the moving boundaries is described.

引用

页数：5

共 35 条

[1]

BOLLING GF, 1958, J I MET, V86, P492

[2] The formation of twinned metallic crystals [J].

Carpenter, HCH ;

Tamura, S .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1926, 113 (763) :161-U31

[3]

Charnock W., 1967, METAL SCI J, V1, P78

[4]

EVING JA, 1900, PHILOS T R SOC LON A, V195, P279

[5] The role of shear stress in the formation of annealing twin boundaries in copper [J].

Field, DP ;

Eames, RC ;

Lillo, TM .

SCRIPTA MATERIALIA, 2006, 54 (06) :983-986

[6] Computation of grain boundary stiffness and mobility from boundary fluctuations [J].

Foiles, Stephen M. ;

Hoyt, J. J. .

ACTA MATERIALIA, 2006, 54 (12) :3351-3357

[7] FORMATION OF ANNEALING TWINS DURING GRAIN GROWTH [J].

FULLMAN, RL ;

FISHER, JC .

JOURNAL OF APPLIED PHYSICS, 1951, 22 (11) :1350-1355

[8] FORMATION OF ANNEALING TWINS [J].

GLEITER, H .

ACTA METALLURGICA, 1969, 17 (12) :1421-&

[9] Mechanisms of grain growth in nanocrystalline fcc metals by molecular-dynamics simulation [J].

Haslam, AJ ;

Phillpot, SR ;

Wolf, H ;

Moldovan, D ;

Gleiter, H .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 318 (1-2) :293-312

[10] Microstructure and thermal stability of electrodeposited nanocrystalline nickel [J].

Hourai, M ;

Holdway, P ;

Cerezo, A ;

Smith, GDW .

METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, 2002, 386-3 :397-402

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