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Irradiation creep due to SIPA under cascade damage conditions

Technical Report ·
OSTI ID:139208
;  [1];
  1. Pacific Northwest Lab., Richland, VA (United States)
This paper derives the relationships between void swelling and irradiation creep due to Stress-Induced Preferred Absorption (SIPA) and SIPA-Induced Growth (SIG) under cascade damage conditions in an irradiated pressurized tube. It is found that at low swelling rates irradiation creep is a major contribution to the total diametral strain rate of the tube, whereas at high swelling rates the creep becomes a minor contribution. The anisotropy of the corresponding dislocation structure is also predicted to decline as the swelling rate increases. The theoretical predictions are found to agree very well with experimental results.
Research Organization:
Oak Ridge National Lab., TN (United States)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
139208
Report Number(s):
DOE/ER--0313/13; ORNL/M--2722; ON: DE93013462
Country of Publication:
United States
Language:
English