Time-dependent strain under load that is enhanced or driven by irradiation-produced defects. Stress changes defect capture and dislocation motion; the dependence need not match ordinary thermal creep.
Stress-directed deformation generated by irradiation-defect processes that can operate where ordinary creep is small. The terminology overlaps with irradiation creep in the literature; the mechanism and reference condition should be stated.
Enhancement of a stress-driven creep mechanism by irradiation-maintained point-defect populations, for example accelerated diffusion or dislocation climb. It need not have the creep rate of an unirradiated specimen.
An irradiation creep mechanism in which applied stress makes differently oriented dislocations or dislocation loops absorb point defects at different rates. The resulting directional strain is distinct from stress-free void swelling.
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