Vacancy cluster nucleation during irradiation with preferred point-defect absorption
During high-temperature irradiation of metals a new microstructure is produced through the formation of dislocation loops, voids, and precipitates. The formation of voids and both interstitial- and vacancy-type loops is critically dependent on the bias factors for each sink and on the interaction between sink and point-defects. The recombination rate of vacancies and interstitials also depends on their mutual interaction. Therefore, the recombination coefficient as well as the bias factors for voids and vacancy- and interstitial-type loops are first derived, and subsequently utilized in studying their effects on the nucleation of both voids and vacancy-type loops. The rate of recombination is proportional to a recombination radius. The computed values for this radius are in good agreement with measured values at low temperatures.
- Research Organization:
- Wisconsin Univ., Madison (USA)
- DOE Contract Number:
- AS02-78ER04861
- OSTI ID:
- 5595181
- Report Number(s):
- DOE/ER/04861-T2; ON: DE82005194
- Country of Publication:
- United States
- Language:
- English
Similar Records
Creep and swelling deformation in structural materials during fast-neutron irradiation
Asymmetric dislocation/point-defect interactions and the modeling of void swelling