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Atomic simulation of effect of stacking fault and dislocation on fracture behaviour in Fe crystal

Journal Article


Abstract


  • The defects in crystalline materials significantly affect the fracture behaviors. In this paper

    molecular dynamics (MD) model using a potential of embedded atom method (EAM) has been

    developed to investigate the effect of the major crystalline defects, stacking fault and edge dislocation,

    on the crack propagation in Fe crystal. Six cases with different locations of stacking fault and edge

    dislocation have been studied. The strain distribution in lattice aggregate was heterogeneous. The

    dislocations were observed slipping along directions [100] and [-100] on the plane (100). Simulation

    results showed that the location of the stacking fault and edge dislocation significantly influenced the

    crack propagation speed.

Publication Date


  • 2008

Citation


  • Lu, C., Gao, Y., Zhu, H. & Tieu, A. K. (2008). Atomic simulation of effect of stacking fault and dislocation on fracture behaviour in Fe crystal. Key Engineering Materials, 385-387 457-460.

Scopus Eid


  • 2-s2.0-54149084773

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4254

Number Of Pages


  • 3

Start Page


  • 457

End Page


  • 460

Volume


  • 385-387

Abstract


  • The defects in crystalline materials significantly affect the fracture behaviors. In this paper

    molecular dynamics (MD) model using a potential of embedded atom method (EAM) has been

    developed to investigate the effect of the major crystalline defects, stacking fault and edge dislocation,

    on the crack propagation in Fe crystal. Six cases with different locations of stacking fault and edge

    dislocation have been studied. The strain distribution in lattice aggregate was heterogeneous. The

    dislocations were observed slipping along directions [100] and [-100] on the plane (100). Simulation

    results showed that the location of the stacking fault and edge dislocation significantly influenced the

    crack propagation speed.

Publication Date


  • 2008

Citation


  • Lu, C., Gao, Y., Zhu, H. & Tieu, A. K. (2008). Atomic simulation of effect of stacking fault and dislocation on fracture behaviour in Fe crystal. Key Engineering Materials, 385-387 457-460.

Scopus Eid


  • 2-s2.0-54149084773

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4254

Number Of Pages


  • 3

Start Page


  • 457

End Page


  • 460

Volume


  • 385-387