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Article
Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C
Journal of Nuclear Materials
  • Jianchao He, University of Science and Technology Beijing
  • Farong Wan, University of Science and Technology Beijing
  • Kumar Sridharan, University of Wisconsin - Madison
  • Todd Allen, University of Wisconsin - Madison
  • A. Certain, Pacific Northwest National Laboratory
  • Y. Q. Wu, Boise State University
Document Type
Article
Publication Date
9-1-2014
Abstract
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.
Citation Information
Jianchao He, Farong Wan, Kumar Sridharan, Todd Allen, et al.. "Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C" Journal of Nuclear Materials (2014)
Available at: http://works.bepress.com/yaqiao_wu/10/