THE EFFECTS OF ONE-DIMENSIONAL MIGRATION OF SELF-INTERSTITIAL CLUSTERS ON THE FORMATION OF VOID LATTICES
Void lattices in irradiated metals were first observed about 30 years ago [1], and while they have been the subject of many theoretical and experimental studies since then, no definitive theory of void lattice formation exists. Crowdion clusters having the property of three-dimensional diffusion in the material along paths consisting of segments of one-dimensional random walks are central to the Production Bias Model of void swelling [2], which has been shown to be quite successful in describing many aspects of microstructure evolution under cascade-producing irradiation. The rationale for the present investigation is that if a theory can explain void swelling, then it should also be compatible with the formation of void lattices. Thus, a key element of the Production Bias Model, the one-dimensional migration of crowdion clusters with occasional Burgers vector changes, was examined as a necessary condition for the formation of a void lattice.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 902067
- Report Number(s):
- PNNL-SA-31908; AT6020100; TRN: US0702747
- Resource Relation:
- Related Information: Fusion Materials: Semi-Annual Progress Report Ending December 31, 2001, 31:161-163
- Country of Publication:
- United States
- Language:
- English
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