Interaction of transonic edge dislocations with self-interstitial loop

San-Qiang Shi; W. J. Zhu; H. Huang; C. H. Woo

doi:10.1080/10420150211408

Interaction of transonic edge dislocations with self-interstitial loop

San-Qiang Shi, W. J. Zhu, H. Huang, C. H. Woo

Research output: Journal article publication › Journal article › Academic research › peer-review

3 Citations (Scopus)

Abstract

The interaction of transonic edge dislocations with a sessile self-interstitial dislocation loop (SIL) in BCC tungsten is investigated using atomistic Molecular Dynamics method. The moving velocity of the transonic edge dislocations is higher than the transverse sound wave velocity. It was found that SIL has a strong pinning effect to the moving edge dislocations. The SIL was eventually annihilated through forming jogs on the moving edge dislocations. A transonic edge dislocation can be stopped by SIL at the pinning point, and then the resulting jogs could move above the sound barrier afterwards under high shear.

Original language	English
Pages (from-to)	201-208
Number of pages	8
Journal	Radiation Effects and Defects in Solids
Volume	157
Issue number	1-2
DOIs	https://doi.org/10.1080/10420150211408
Publication status	Published - 1 Dec 2002

Keywords

Defect interaction
High velocity dislocation
Molecular dynamics simulation
Self-interstitial loop

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Materials Science(all)
Condensed Matter Physics

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10.1080/10420150211408

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title = "Interaction of transonic edge dislocations with self-interstitial loop",

abstract = "The interaction of transonic edge dislocations with a sessile self-interstitial dislocation loop (SIL) in BCC tungsten is investigated using atomistic Molecular Dynamics method. The moving velocity of the transonic edge dislocations is higher than the transverse sound wave velocity. It was found that SIL has a strong pinning effect to the moving edge dislocations. The SIL was eventually annihilated through forming jogs on the moving edge dislocations. A transonic edge dislocation can be stopped by SIL at the pinning point, and then the resulting jogs could move above the sound barrier afterwards under high shear.",

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AU - Shi, San-Qiang

AU - Zhu, W. J.

AU - Huang, H.

AU - Woo, C. H.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - The interaction of transonic edge dislocations with a sessile self-interstitial dislocation loop (SIL) in BCC tungsten is investigated using atomistic Molecular Dynamics method. The moving velocity of the transonic edge dislocations is higher than the transverse sound wave velocity. It was found that SIL has a strong pinning effect to the moving edge dislocations. The SIL was eventually annihilated through forming jogs on the moving edge dislocations. A transonic edge dislocation can be stopped by SIL at the pinning point, and then the resulting jogs could move above the sound barrier afterwards under high shear.

AB - The interaction of transonic edge dislocations with a sessile self-interstitial dislocation loop (SIL) in BCC tungsten is investigated using atomistic Molecular Dynamics method. The moving velocity of the transonic edge dislocations is higher than the transverse sound wave velocity. It was found that SIL has a strong pinning effect to the moving edge dislocations. The SIL was eventually annihilated through forming jogs on the moving edge dislocations. A transonic edge dislocation can be stopped by SIL at the pinning point, and then the resulting jogs could move above the sound barrier afterwards under high shear.

KW - Defect interaction

KW - High velocity dislocation

KW - Molecular dynamics simulation

KW - Self-interstitial loop

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DO - 10.1080/10420150211408

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SN - 1042-0150

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JO - Radiation Effects and Defects in Solids

JF - Radiation Effects and Defects in Solids

IS - 1-2

ER -

Interaction of transonic edge dislocations with self-interstitial loop

Abstract

Keywords

ASJC Scopus subject areas

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