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Title: On the irradiation creep by climb-enabled glide of dislocations

Abstract

The plastic deformation is defined by the proportional to stress elastic deflections of pinned dislocations in climb-enabled glide models of irradiation creep. Here, we argue that this relation is incorrect; instead, as in other pinning-unpinning-type models, the dislocations move from one set of obstacles to another, so that the inter-obstacle spacing determines creep rate, whereas the dependence on the applied stress is only implicit in the unpinning time.

Authors:
 [1];  [2];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Center for Materials Processing
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
OSTI Identifier:
1325425
Alternate Identifier(s):
OSTI ID: 1323962
Grant/Contract Number:  
AC05-00OR22725; C05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 477; Journal Issue: C; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; creep; metallic material; analytic functions; irradiation

Citation Formats

Barashev, A. V., Golubov, S. I., and Stoller, R. E. On the irradiation creep by climb-enabled glide of dislocations. United States: N. p., 2016. Web. doi:10.1016/j.jnucmat.2016.04.053.
Barashev, A. V., Golubov, S. I., & Stoller, R. E. On the irradiation creep by climb-enabled glide of dislocations. United States. doi:10.1016/j.jnucmat.2016.04.053.
Barashev, A. V., Golubov, S. I., and Stoller, R. E. Tue . "On the irradiation creep by climb-enabled glide of dislocations". United States. doi:10.1016/j.jnucmat.2016.04.053. https://www.osti.gov/servlets/purl/1325425.
@article{osti_1325425,
title = {On the irradiation creep by climb-enabled glide of dislocations},
author = {Barashev, A. V. and Golubov, S. I. and Stoller, R. E.},
abstractNote = {The plastic deformation is defined by the proportional to stress elastic deflections of pinned dislocations in climb-enabled glide models of irradiation creep. Here, we argue that this relation is incorrect; instead, as in other pinning-unpinning-type models, the dislocations move from one set of obstacles to another, so that the inter-obstacle spacing determines creep rate, whereas the dependence on the applied stress is only implicit in the unpinning time.},
doi = {10.1016/j.jnucmat.2016.04.053},
journal = {Journal of Nuclear Materials},
number = C,
volume = 477,
place = {United States},
year = {2016},
month = {5}
}

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