Response of 9Cr-ODS steel to proton irradiation at 400 °c

Jianchao He; Farong Wan; Kumar Sridharan; Todd R. Allen; A. Certain; Y. Q. Wu

doi:10.1016/j.jnucmat.2014.05.004

Response of 9Cr-ODS steel to proton irradiation at 400 °c

Jianchao He^*
, Farong Wan
, Kumar Sridharan
, Todd R. Allen
, A. Certain
, Y. Q. Wu

^*Corresponding author for this work

University of Science and Technology Beijing
University of Wisconsin
Idaho National Laboratory
Pacific Northwest National Laboratory
Boise State University
Center for Advanced Energy Studies

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

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.

Original language	English
Pages (from-to)	87-94
Number of pages	8
Journal	Journal of Nuclear Materials
Volume	452
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2014.05.004
State	Published - Sep 2014
Externally published	Yes

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@article{dc53b272725341d187c061789cb858f1,

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.",

author = "Jianchao He and Farong Wan and Kumar Sridharan and Allen, \{Todd R.\} and A. Certain and Wu, \{Y. Q.\}",

year = "2014",

month = sep,

doi = "10.1016/j.jnucmat.2014.05.004",

language = "英语",

volume = "452",

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journal = "Journal of Nuclear Materials",

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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 - https://www.scopus.com/pages/publications/84901436813

U2 - 10.1016/j.jnucmat.2014.05.004

DO - 10.1016/j.jnucmat.2014.05.004

M3 - 文章

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 -

Response of 9Cr-ODS steel to proton irradiation at 400 °c

Abstract

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