This paper discusses the results of two series of experiments conducted on pure hcp rhenium in the EBR-II and FFTF fast reactors. In FFTF, density change data were derived from open tubes and solid rods irradiated at temperatures and fluences in the range of 1020-1250?C and 4.4-8.3?1022 n cm-2, respectively (E>0.1 MeV). Both density change and diametral change data were obtained from pressurized tubes irradiated in EBR-II to 0.65 and 5.1?1022 n cm-2 at temperatures between 1030?C and 1330?C. Analysis of the data shows that four concurrent processes contribute to the radiation-induced strains observed in these experiments. These are void swelling, transmutation-induced densification via production of osmium, irradiation creep and irradiation growth.
Revised: March 19, 2003 |
Published: December 1, 2000
Citation
Garner F., M.B. Toloczko, L.R. Greenwood, C.R. Eiholzer, M.M. Paxton, and R.J. Puigh. 2000.Swelling, irradiation creep and growth of pure rhenium irradiated with fast neutrons at 1030-1330 degrees C.Journal of Nuclear Materials 283-287, no. Part 1:380-385.PNNL-SA-31624.