skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dynamics of Drag of Self-interstitial Clusters by an Edge Dislocation in Iron.

Abstract

Self-interstitial atom (SIA) clusters are created in metals under fast neutron irradiation and are believed to interact with dislocations and increase the flow stress. In this paper, atomic-scale computer simulations are used to investigate the dynamic interaction between an edge dislocation and small SIA loops that do not intersect the dislocation glide plane and whose Burgers vector is parallel to it. Such loops can be dragged by a moving dislocation and this effect is simulated as a function of temperature and loop size, spacing, stand-off distance and Burgers vector orientation. The results can be understood in terms of the one-dimensional mobility of SIA loops.

Authors:
 [1];  [1];  [2]
  1. University of Liverpool
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1003352
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Materials Science and Engineering A
Additional Journal Information:
Journal Volume: 400-401; Journal ID: ISSN 0921-5093
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ATOMS; BURGERS VECTOR; COMPUTERIZED SIMULATION; DISLOCATIONS; EDGE DISLOCATIONS; FAST NEUTRONS; FLOW STRESS; IRON; IRRADIATION; ORIENTATION

Citation Formats

Rong, Zhouwen, Bacon, David J, and Osetskiy, Yury N. Dynamics of Drag of Self-interstitial Clusters by an Edge Dislocation in Iron.. United States: N. p., 2005. Web. doi:10.1016/j.msea.2005.03.066.
Rong, Zhouwen, Bacon, David J, & Osetskiy, Yury N. Dynamics of Drag of Self-interstitial Clusters by an Edge Dislocation in Iron.. United States. doi:10.1016/j.msea.2005.03.066.
Rong, Zhouwen, Bacon, David J, and Osetskiy, Yury N. Sat . "Dynamics of Drag of Self-interstitial Clusters by an Edge Dislocation in Iron.". United States. doi:10.1016/j.msea.2005.03.066.
@article{osti_1003352,
title = {Dynamics of Drag of Self-interstitial Clusters by an Edge Dislocation in Iron.},
author = {Rong, Zhouwen and Bacon, David J and Osetskiy, Yury N},
abstractNote = {Self-interstitial atom (SIA) clusters are created in metals under fast neutron irradiation and are believed to interact with dislocations and increase the flow stress. In this paper, atomic-scale computer simulations are used to investigate the dynamic interaction between an edge dislocation and small SIA loops that do not intersect the dislocation glide plane and whose Burgers vector is parallel to it. Such loops can be dragged by a moving dislocation and this effect is simulated as a function of temperature and loop size, spacing, stand-off distance and Burgers vector orientation. The results can be understood in terms of the one-dimensional mobility of SIA loops.},
doi = {10.1016/j.msea.2005.03.066},
journal = {Materials Science and Engineering A},
issn = {0921-5093},
number = ,
volume = 400-401,
place = {United States},
year = {2005},
month = {1}
}