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Title: Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C

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.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1136326
Report Number(s):
INL/JOU-14-32408
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Nuclear Materials; Journal Volume: 452; Journal Issue: 1 - 3
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; proton irradiation

Citation Formats

Jianchao He, Farong Wan, Kumar Sridharan, Todd R. Allen, A. Certain, and Y. Q. Wu. Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C. United States: N. p., 2014. Web.
Jianchao He, Farong Wan, Kumar Sridharan, Todd R. Allen, A. Certain, & Y. Q. Wu. Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C. United States.
Jianchao He, Farong Wan, Kumar Sridharan, Todd R. Allen, A. Certain, and Y. Q. Wu. Mon . "Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C". United States. doi:.
@article{osti_1136326,
title = {Response of 9Cr-ODS Steel to Proton Irradiation at 400 °C},
author = {Jianchao He and Farong Wan and Kumar Sridharan and Todd R. Allen and A. Certain and Y. Q. Wu},
abstractNote = {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.},
doi = {},
journal = {Journal of Nuclear Materials},
number = 1 - 3,
volume = 452,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 2014},
month = {Mon Sep 01 00:00:00 EDT 2014}
}