Nonequilibrium molecular dynamics simulations of metallic friction at Ta/Al and Cu/Ag interfaces

被引:23
作者
Hammerberg, JE [1 ]
Holian, BL
Germann, TC
Ravelo, R
机构
[1] Los Alamos Natl Lab, Div Appl Phys, Los Alamos, NM 87545 USA
[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[3] Univ Texas, Dept Phys, El Paso, TX 79968 USA
来源
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2004年 / 35A卷 / 09期
关键词
D O I
10.1007/s11661-004-0220-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
With the advent of large-scale parallel computers in the past decade, it has become possible to study the microphysics of complex nonlinear many-body systems at scales approaching the mesoscale. One of the areas where nonequilibrium deformation arises is that of dry sliding friction between ductile metals. We discuss the results of atomistic simulation studies of sliding friction in the velocity range 10 to 10(3) m/s in the high-pressure regime of 5 to 15 GPa for Ta/Al and Cu/Ag tribopairs. We discuss the velocity dependence and the near interface deformation seen in these simulations.
引用
收藏
页码:2741 / 2745
页数:5
相关论文
共 44 条
[1]  
[Anonymous], ANN REV COMPUTATIONA
[2]   The world of the complex Ginzburg-Landau equation [J].
Aranson, IS ;
Kramer, L .
REVIEWS OF MODERN PHYSICS, 2002, 74 (01) :99-143
[3]  
BHUSHAN B, 2001, MODERN TRIBOLOGY, V1
[4]   DEFORMATION, HEATING AND MELTING OF SOLIDS IN HIGH-SPEED FRICTION [J].
BOWDEN, FP ;
PERSSON, PA .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1961, 260 (1300) :433-+
[5]   THE FRICTION OF SOLIDS AT VERY HIGH SPEEDS .1. METAL ON METAL .2. METAL ON DIAMOND [J].
BOWDEN, FP ;
FREITAG, EH .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1958, 248 (1254) :350-+
[6]  
FAEHL RJ, 2002, UNPUB P 9 INT C MEG
[7]   A CONSTITUTIVE DESCRIPTION OF THE DEFORMATION OF COPPER BASED ON THE USE OF THE MECHANICAL THRESHOLD STRESS AS AN INTERNAL STATE VARIABLE [J].
FOLLANSBEE, PS ;
KOCKS, UF .
ACTA METALLURGICA, 1988, 36 (01) :81-93
[8]   Orientation dependence in molecular dynamics simulations of shocked single crystals [J].
Germann, TC ;
Holian, BL ;
Lomdahl, PS ;
Ravelo, R .
PHYSICAL REVIEW LETTERS, 2000, 84 (23) :5351-5354
[9]   Dislocation structure behind a shock front in Fcc perfect crystals: Atomistic simulation results [J].
Germann, TC ;
Tanguy, D ;
Holian, BL ;
Lomdahl, PS ;
Mareschal, M ;
Ravelo, R .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (09) :2609-2615
[10]   Recent advances in large-scale atomistic materials simulations [J].
Germann, TC ;
Lomdahl, PS .
COMPUTING IN SCIENCE & ENGINEERING, 1999, 1 (02) :10-+