Evolution and interaction of dislocations in intermetallics: Fully anisotropic discrete dislocation dynamics simulations

被引:0
作者
Chen, Qian [1 ]
Biner, Bulent [1 ]
机构
[1] Iowa State Univ, Ames Lab, USDOE, Ames, IA 50011 USA
来源
ADVANCED INTERMETALLIC-BASED ALLOYS | 2007年 / 980卷
关键词
D O I
暂无
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
In this study, the origin of large ductility that is seen in recently discovered rare-earth intermetallic compounds: YCu, YAg and YZn is explored by using fully anisotropic 3D dislocation dynamics simulations. The stability of the glide dislocations, the behavior of the Frank-Read sources and the strength of junctions are evaluated and compared to those seen for the common intermetallics, NiAl and Fe-25Al.
引用
收藏
页码:107 / +
页数:2
相关论文
共 9 条
  • [1] PRECISE EVALUATION OF DERIVATIVES OF ANISOTROPIC ELASTIC GREENS FUNCTIONS
    BARNETT, DM
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1972, 49 (02): : 741 - &
  • [2] Stability of perfect dislocations in rare-earth intermetallic compounds: YCu, YAg and YZn
    Chen, Q
    Biner, SB
    [J]. ACTA MATERIALIA, 2005, 53 (11) : 3215 - 3223
  • [3] Chen Q., NATURE
  • [4] A family of ductile intermetallic compounds
    Gschneidner, K
    Russell, A
    Pecharsky, A
    Morris, J
    Zhang, ZH
    Lograsso, T
    Hsu, D
    Lo, CHC
    Ye, YY
    Slager, A
    Kesse, D
    [J]. NATURE MATERIALS, 2003, 2 (09) : 587 - 590
  • [5] Ordered intermetallic alloys: an assessment
    Liu, CT
    Stringer, J
    Mundy, JN
    Horton, LL
    Angelini, P
    [J]. INTERMETALLICS, 1997, 5 (08) : 579 - 596
  • [6] MURA T, 1963, PHILOS MAG, V3, P625
  • [7] REACTIONS BETWEEN GLIDE DISLOCATIONS AND FOREST DISLOCATIONS IN ANISOTROPIC BCC METALS
    PUSCHL, W
    [J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1985, 90 (01): : 181 - 189
  • [8] Evolution of substructures in deformed NiAl single crystals oriented for single slip
    Shi, XL
    Mahajan, S
    Pollock, TM
    Arunachalam, VS
    [J]. PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1999, 79 (07): : 1555 - 1566
  • [9] DISLOCATIONS AND CRACKS IN ANISOTROPIC ELASTICITY
    STROH, AN
    [J]. PHILOSOPHICAL MAGAZINE, 1958, 3 (30): : 625 - &