TY - JOUR
T1 - Response of 9Cr-ODS steel to proton irradiation at 400 °c
AU - He, Jianchao
AU - Wan, Farong
AU - Sridharan, Kumar
AU - Allen, Todd R.
AU - Certain, A.
AU - Wu, Y. Q.
PY - 2014/9
Y1 - 2014/9
N2 - The stability of Y-Ti-O nanoclusters, dislocation structure, and grain boundary segregation in 9Cr-ODS steels has been investigated following proton irradiation at 400°C with damage levels up to 3.7 dpa. A slight coarsening and a decrease in number density of nanoclusters were observed as a result of irradiation. The composition of nanoclusters was also observed to change with a slight increase of Y and Cr concentration in the nanoclusters following irradiation. Size, density, and composition of the nanoclusters were investigated as a function of nanocluster size, specifically classified to three groups. In addition to the changes in nanoclusters, dislocation loops were observed after irradiation. Finally, radiation-induced enrichment of Cr and depletion of W were observed at grain boundaries after irradiation.
AB - The stability of Y-Ti-O nanoclusters, dislocation structure, and grain boundary segregation in 9Cr-ODS steels has been investigated following proton irradiation at 400°C with damage levels up to 3.7 dpa. A slight coarsening and a decrease in number density of nanoclusters were observed as a result of irradiation. The composition of nanoclusters was also observed to change with a slight increase of Y and Cr concentration in the nanoclusters following irradiation. Size, density, and composition of the nanoclusters were investigated as a function of nanocluster size, specifically classified to three groups. In addition to the changes in nanoclusters, dislocation loops were observed after irradiation. Finally, radiation-induced enrichment of Cr and depletion of W were observed at grain boundaries after irradiation.
UR - http://www.scopus.com/inward/record.url?scp=84901436813&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2014.05.004
DO - 10.1016/j.jnucmat.2014.05.004
M3 - Article
AN - SCOPUS:84901436813
SN - 0022-3115
VL - 452
SP - 87
EP - 94
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
ER -