TY - JOUR
T1 - Irradiation response in weldment and HIP joint of reduced activation ferritic/martensitic steel, F82H
AU - Hirose, T.
AU - Sokolov, M. A.
AU - Ando, M.
AU - Tanigawa, H.
AU - Shiba, K.
AU - Stoller, R. E.
AU - Odette, G. R.
PY - 2013
Y1 - 2013
N2 - This work investigates irradiation response in the joints of F82H employed for a fusion breeding blanket. The joints, which were prepared using welding and diffusion welding, were irradiated up to 6 dpa in the High Flux Isotope Reactor at the Oak Ridge National Laboratory. Post-irradiation tests revealed hardening in weldment (WM) and base metal (BM) greater than 300 MPa. However, the heat affected zones (HAZ) exhibit about half that of WM and BM. Therefore, neutron irradiation decreased the strength of the HAZ, leaving it in danger of local deformation in this region. Further the hardening in WM made with an electron beam was larger than that in WM made with tungsten inert gas welding. However the mechanical properties of the diffusion-welded joint were very similar to those of BM even after the irradiation.
AB - This work investigates irradiation response in the joints of F82H employed for a fusion breeding blanket. The joints, which were prepared using welding and diffusion welding, were irradiated up to 6 dpa in the High Flux Isotope Reactor at the Oak Ridge National Laboratory. Post-irradiation tests revealed hardening in weldment (WM) and base metal (BM) greater than 300 MPa. However, the heat affected zones (HAZ) exhibit about half that of WM and BM. Therefore, neutron irradiation decreased the strength of the HAZ, leaving it in danger of local deformation in this region. Further the hardening in WM made with an electron beam was larger than that in WM made with tungsten inert gas welding. However the mechanical properties of the diffusion-welded joint were very similar to those of BM even after the irradiation.
UR - http://www.scopus.com/inward/record.url?scp=84884905144&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2013.05.063
DO - 10.1016/j.jnucmat.2013.05.063
M3 - Article
AN - SCOPUS:84884905144
SN - 0022-3115
VL - 442
SP - S557-S561
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3 SUPPL.1
ER -
