The effects of phase stability on void swelling in P,Ti-modified 316 stainless steels during neutron irradiation
- Power Reactor and Nuclear Fuel Development Corp., Oarai, Ibaraki (Japan)
Commercially developed 20% cold-worked P,Ti-modified 316 stainless steel claddings were irradiated as fuel pins in C-type irradiation rigs of JOYO under typical fast reactor conditions. The microstructural changes of irradiated claddings at temperatures around 500 C were extensively analyzed using transmission electron microscopy. Void formation is closely related with M{sub 6}C and G-phase precipitates and concomitant phosphide dissolution beyond the fast neutron fluence of 15 {times} 10{sup 26} n/m{sup 2}. Such phase instability in the fuel pin cladding during the fast reactor operation is caused by the radiation induced solute segregation, and it mainly interpreted in terms of varying system sink strength due to dislocation and precipitate changes.
- OSTI ID:
- 679522
- Report Number(s):
- CONF-960643-; TRN: 99:009455
- Resource Relation:
- Conference: 18. symposium on effects of radiation on materials, Hyannis, MA (United States), 25-27 Jun 1996; Other Information: PBD: 1999; Related Information: Is Part Of Effects of radiation on materials: 18. international symposium; Nanstad, R.K. [ed.] [Oak Ridge National Lab., TN (United States)]; Hamilton, M.L.; Garner, F.A. [eds.] [Pacific Northwest National Lab., Richland, WA (United States)]; Kumar, A.S. [ed.] [Univ. of Missouri, Rolla, MO (United States)]; PB: 1261 p.; ASTM special technical publication 1325
- Country of Publication:
- United States
- Language:
- English
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