MOLECULAR DYNAMICS MODELLING OF BOUNDARY MIGRATION IN BICRYSTALS UNDER NANOBURNISHING

被引：0
|
作者：
Dmitriev, Andrey I. [1 ,2 ,3 ]
Nikonov, Anton Yu. [1 ,2 ]
机构：
[1] Russian Acad Sci, ISPMS, Akad Sky Pr 2-4, Tomsk 634021, Russia
[2] Natl Res Tomsk State Univ TSU, Tomsk 634050, Russia
[3] Natl Res Tomsk Polytech Univ TPU, Tomsk 634050, Russia
来源：
PARTICLE-BASED METHODS IV-FUNDAMENTALS AND APPLICATIONS | 2015年
关键词：
numerical modeling; molecular dynamics; nanostructuring burnishing; vortex-like displacements;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The paper reports the molecular dynamics simulation results on the behavior of a copper crystallite in local frictional contact. The crystallite has a perfect defect-free structure and contains a high-angle grain boundary of type Sigma 5. The influence of the initial structure on the specimen behavior under loading was analyzed. It is shown that nanoblocks are formed in the subsurface layer. The atomic mechanism of nanofragmentation was studied. A detailed analysis of atomic displacements in the blocks showed that the displacements are rotational. Calculations revealed that the misorientation angle of formed nanoblocks along different directions does not exceed 2 degrees.
引用
收藏
页码：248 / 254
页数：7
相关论文
共 50 条
  • [21] INSITU STUDY OF THE MIGRATION OF GRAIN-BOUNDARY FACETS IN AU BICRYSTALS UNDER HIGH DRIVING FORCES
    WURSCHUM, R
    BALLUFFI, RW
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1993, 136 (02): : 323 - 336
  • [22] The effect of grain boundary sliding on curvature-driven boundary migration in Zn bicrystals
    Sheikh-Ali, A. D.
    SCRIPTA MATERIALIA, 2007, 56 (12) : 1043 - 1046
  • [23] Grain boundary migration and grain rotation studied by molecular dynamics
    Trautt, Z. T.
    Mishin, Y.
    ACTA MATERIALIA, 2012, 60 (05) : 2407 - 2424
  • [24] Molecular dynamics investigation of the grain boundary migration hysteresis of nanocrystalline Ni under cyclic shear loading
    Wang, Peng
    Yang, Xinhua
    Peng, Di
    MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 2017, 25 (02)
  • [25] Simulations of boundary migration during recrystallization using molecular dynamics
    Godiksen, Rasmus B.
    Trautt, Zachary T.
    Upmanyu, Moneesh
    Schiotz, Jakob
    Jensen, Dorte Juul
    Schmidt, Soren
    ACTA MATERIALIA, 2007, 55 (18) : 6383 - 6391
  • [26] Molecular Dynamics Simulations of Phosphorus Migration in a Grain Boundary of α-Iron
    Ebihara, Ken-ichi
    Suzudo, Tomoaki
    TMS 2020 149TH ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS, 2020, : 995 - 1002
  • [27] Quantifying uncertainty in molecular dynamics simulations of grain boundary migration
    Race, C. P.
    MOLECULAR SIMULATION, 2015, 41 (13) : 1069 - 1073
  • [28] Molecular dynamics simulation of grain boundary formation and migration in silicon
    Sugio, Kenjiro
    Fukushima, Hiroshi
    Yanagisawa, Osamu
    MATERIALS TRANSACTIONS, 2006, 47 (11) : 2711 - 2717
  • [29] Separating grain boundary migration mechanisms in molecular dynamics simulations
    Ulomek, Felix
    Mohles, Volker
    ACTA MATERIALIA, 2016, 103 : 424 - 432
  • [30] HIGH-ANGLE GRAIN-BOUNDARY MIGRATION IN ALUMINUM BICRYSTALS
    GOTTSTEIN, G
    MOLODOV, DA
    CZUBAYKO, U
    SHVINDLERMAN, LS
    JOURNAL DE PHYSIQUE IV, 1995, 5 (C3): : 89 - 106
12345