An experiment conducted at ~400 degrees C on simple model austenitic alloys (Fe-15Cr-16Ni and Fe-15Cr-16Ni-0.25Ti, both with and without 500 appm boron) irradiated in the FFTF fast reactor at seven different dpa rates clearly shows that lowering of the atomic displacement rate leads to a pronounced reduction in the transient regime of void swelling. While the steady state swelling rate (~1%/dpa) of these alloys is unaffected by changes in the dpa rate, the transient regime of swelling can vary from
Revised: July 27, 2010 |
Published: June 30, 2001
Citation
Okita T., T. Sato, N. Sekimura, F.A. Garner, L.R. Greenwood, W.G. Wolfer, and Y. Isobe. 2001.Neutron-Induced Microstructural Evolution of Fe-15Cr-16Ni Alloys at ~400 C During Neutron Irradiation in the FFTF Fast Reactor. In Fusion Materials: Semi-Annual Progress Report for Period Ending June 30, 2001. 148-164. Washington, Dc:US Department of Energy, Office of Fusion Energy Sciences.PNNL-SA-31902.