Atomistic study of dislocation cores in aluminium and copper

被引：40

作者：

Aslanides, A ^{[1
]}

Pontikis, V ^{[1
]}

机构：

[1] Ecole Polytech, Solides Irradies Lab, CEA, DRECAM,CNRS,URA 1380, F-91128 Palaiseau, France

来源：

COMPUTATIONAL MATERIALS SCIENCE | 1998年 / 10卷 / 1-4期

关键词：

D O I：

10.1016/S0927-0256(97)00109-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The core structure of an edge dislocation, dissociated or not, has been investigated through atomistic calculations. The simulation relies on two N-body phenomenological potentials for aluminium and copper. The various dislocation configurations are characterized in terms of strains and energies for both materials. The limit of validity of the elastic theory of dislocations is then discussed by comparing its predictions to those obtained by simulation. Copyright (C) 1998 Elsevier Science B.V.

引用

页码：401 / 405

页数：5

共 11 条

[1]

ASLANIDES A, UNPUB

[2] THE ATOMIC-STRUCTURE OF DISLOCATIONS IN HCP METALS .1. POTENTIALS AND UNSTRESSED CRYSTALS [J].

BACON, DJ ;

MARTIN, JW .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1981, 43 (04) :883-900

[3] Atomistic computation of the image force on a dislocation in a bicrystal .1. Case of small difference between the elastic moduli of the two half-crystals [J].

Beauchamp, P ;

Lepinoux, J .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1996, 74 (04) :919-938

[4] CALCULATION OF THE VACANCY FORMATION ENERGY IN ALUMINUM [J].

GILLAN, MJ .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (04) :689-711

[5] STACKING-FAULT ENERGIES IN ALUMINUM [J].

HAMMER, B ;

JACOBSEN, KW ;

MILMAN, V ;

PAYNE, MC .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (50) :10453-10460

[6]

Hirth J. P., 1982, THEORY DISLOCATIONS

[7]

Kulcinski G. L., 1972, INTERATOMIC POTENTIA, P735

[8]

LOSADA CR, 1993, MATER RES SOC S P, V291, P549

[9] A STUDY OF THE STRUCTURE OF LOMER AND 60-DEGREES DISLOCATIONS IN ALUMINUM USING HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPY [J].

MILLS, MJ ;

STADELMANN, P .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1989, 60 (03) :355-384

[10] HIGH-RESOLUTION STUDY OF [011] LOW-ANGLE TILT BOUNDARIES IN ALUMINUM [J].

PENISSON, JM ;

BOURRET, A .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1979, 40 (06) :811-824

← 1 2 →