TY - BOOK
T1 - Fusion Materials Semiannual Progress Report for the Period Ending December 31, 2020
AU - Parish, Chad
AU - Kato, Yutai
AU - Melton, Stephanie
PY - 2020
Y1 - 2020
N2 - Three ferritic/martensitic alloys; F82H, Fe8Cr2W and CNA3 were studied for the effect of H and He on swelling. Single ion beam (Fe2+), dual ion beam (Fe2++He2+), and triple ion beam (Fe2++He2++H+) irradiations were conducted at 500°C to a damage level of 50 dpa and dual and triple beam irradiation experiments were conducted at 450°C to 50 dpa. Cavity distribution and swelling were comparable in dual ion beam and triple ion beam irradiated F82H at 500°C, indicating that the role of hydrogen in swelling in triple beam irradiated F82H appeared to be insignificant compared to the role of helium. Swelling in Fe8Cr2W and CNA3 at 500°C was approximately 3-4X greater than that at 450°C. In F82H, the average cavity size and swelling were minimally larger at 500°C than at 450°C. The significant role of hydrogen in swelling has yet to be confirmed. Future efforts will focus on separate effects experiments to understand the role of hydrogen in cavity swelling.
AB - Three ferritic/martensitic alloys; F82H, Fe8Cr2W and CNA3 were studied for the effect of H and He on swelling. Single ion beam (Fe2+), dual ion beam (Fe2++He2+), and triple ion beam (Fe2++He2++H+) irradiations were conducted at 500°C to a damage level of 50 dpa and dual and triple beam irradiation experiments were conducted at 450°C to 50 dpa. Cavity distribution and swelling were comparable in dual ion beam and triple ion beam irradiated F82H at 500°C, indicating that the role of hydrogen in swelling in triple beam irradiated F82H appeared to be insignificant compared to the role of helium. Swelling in Fe8Cr2W and CNA3 at 500°C was approximately 3-4X greater than that at 450°C. In F82H, the average cavity size and swelling were minimally larger at 500°C than at 450°C. The significant role of hydrogen in swelling has yet to be confirmed. Future efforts will focus on separate effects experiments to understand the role of hydrogen in cavity swelling.
KW - 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
U2 - 10.2172/1783295
DO - 10.2172/1783295
M3 - Commissioned report
BT - Fusion Materials Semiannual Progress Report for the Period Ending December 31, 2020
CY - United States
ER -