The effects of irradiation, annealing and reirradiation on RPV steels

M. K. Miller; R. K. Nanstad; M. A. Sokolov; K. F. Russell

doi:10.1016/j.jnucmat.2006.02.010

The effects of irradiation, annealing and reirradiation on RPV steels

M. K. Miller, R. K. Nanstad, M. A. Sokolov, K. F. Russell

Advanced Nuclear Materials

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

47 Scopus citations

Abstract

An atom probe tomography microstructural characterization has been performed on an A533B pressure vessel steel (JRQ) after irradiation to a fluence of 5 × 10²³ n m^-2 (E > 1 MeV) and a subsequent annealing treatment of 168 h at 460 °C and also through two cycles of neutron irradiation (0.85 × 10²³ n m^-2 (E > 1 MeV)) and annealing (168 h at 460 °C). The alloy that was neutron irradiated to a fluence of 5 × 10²³ n m^-2 exhibited a high number density of Cu-enriched precipitates and a shift in the ductile-to-brittle transformation temperature of ΔT_41J = 96 °C. Annealing for 168 h at 460 °C coarsened these Cu-enriched precipitates and recovered the embrittlement. The material that was re-irradiated to a total fluence 1.7 × 10²³ n m^-2 also exhibited a high number density of Cu-enriched precipitates and a ΔT_41J shift of 56 °C. Annealing the re-irradiated material for 168 h at 460 °C coarsened these precipitates and recovered the embrittlement.

Original language	English
Pages (from-to)	216-222
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	351
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2006.02.010
State	Published - Jun 1 2006

Funding

The authors would like to thank Drs R. Dietmar Kalkhof and Markus Niffenegger of the Paul Scherrer Institute, Switzerland and Philip Tipping of the Swiss Federal Nuclear Safety Inspectorate for their significant contributions to the research presented in this paper. Research at the Oak Ridge National Laboratory SHaRE User Facility was sponsored by the Division of Materials Sciences and Engineering (atom probe), US Department of Energy, under contract DE-AC05-00OR22725 with UT-Battelle, LLC and by the Office of Nuclear Regulatory Research, US Nuclear Regulatory Commission under inter-agency agreement DOE 1886-N695-3W with the US Department of Energy.

Funders	Funder number
Office of Nuclear Regulatory Research
US Department of Energy	DE-AC05-00OR22725
U.S. Nuclear Regulatory Commission
Division of Materials Sciences and Engineering

Keywords

A0800
P1200
R0200

Access to Document

10.1016/j.jnucmat.2006.02.010

Cite this

@article{34e2d1545d06447982c4541b8d5ab2d2,

title = "The effects of irradiation, annealing and reirradiation on RPV steels",

abstract = "An atom probe tomography microstructural characterization has been performed on an A533B pressure vessel steel (JRQ) after irradiation to a fluence of 5 × 1023 n m-2 (E > 1 MeV) and a subsequent annealing treatment of 168 h at 460 °C and also through two cycles of neutron irradiation (0.85 × 1023 n m-2 (E > 1 MeV)) and annealing (168 h at 460 °C). The alloy that was neutron irradiated to a fluence of 5 × 1023 n m-2 exhibited a high number density of Cu-enriched precipitates and a shift in the ductile-to-brittle transformation temperature of ΔT41J = 96 °C. Annealing for 168 h at 460 °C coarsened these Cu-enriched precipitates and recovered the embrittlement. The material that was re-irradiated to a total fluence 1.7 × 1023 n m-2 also exhibited a high number density of Cu-enriched precipitates and a ΔT41J shift of 56 °C. Annealing the re-irradiated material for 168 h at 460 °C coarsened these precipitates and recovered the embrittlement.",

keywords = "A0800, P1200, R0200",

author = "Miller, {M. K.} and Nanstad, {R. K.} and Sokolov, {M. A.} and Russell, {K. F.}",

year = "2006",

month = jun,

day = "1",

doi = "10.1016/j.jnucmat.2006.02.010",

language = "English",

volume = "351",

pages = "216--222",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

number = "1-3",

}

TY - JOUR

T1 - The effects of irradiation, annealing and reirradiation on RPV steels

AU - Miller, M. K.

AU - Nanstad, R. K.

AU - Sokolov, M. A.

AU - Russell, K. F.

PY - 2006/6/1

Y1 - 2006/6/1

N2 - An atom probe tomography microstructural characterization has been performed on an A533B pressure vessel steel (JRQ) after irradiation to a fluence of 5 × 1023 n m-2 (E > 1 MeV) and a subsequent annealing treatment of 168 h at 460 °C and also through two cycles of neutron irradiation (0.85 × 1023 n m-2 (E > 1 MeV)) and annealing (168 h at 460 °C). The alloy that was neutron irradiated to a fluence of 5 × 1023 n m-2 exhibited a high number density of Cu-enriched precipitates and a shift in the ductile-to-brittle transformation temperature of ΔT41J = 96 °C. Annealing for 168 h at 460 °C coarsened these Cu-enriched precipitates and recovered the embrittlement. The material that was re-irradiated to a total fluence 1.7 × 1023 n m-2 also exhibited a high number density of Cu-enriched precipitates and a ΔT41J shift of 56 °C. Annealing the re-irradiated material for 168 h at 460 °C coarsened these precipitates and recovered the embrittlement.

AB - An atom probe tomography microstructural characterization has been performed on an A533B pressure vessel steel (JRQ) after irradiation to a fluence of 5 × 1023 n m-2 (E > 1 MeV) and a subsequent annealing treatment of 168 h at 460 °C and also through two cycles of neutron irradiation (0.85 × 1023 n m-2 (E > 1 MeV)) and annealing (168 h at 460 °C). The alloy that was neutron irradiated to a fluence of 5 × 1023 n m-2 exhibited a high number density of Cu-enriched precipitates and a shift in the ductile-to-brittle transformation temperature of ΔT41J = 96 °C. Annealing for 168 h at 460 °C coarsened these Cu-enriched precipitates and recovered the embrittlement. The material that was re-irradiated to a total fluence 1.7 × 1023 n m-2 also exhibited a high number density of Cu-enriched precipitates and a ΔT41J shift of 56 °C. Annealing the re-irradiated material for 168 h at 460 °C coarsened these precipitates and recovered the embrittlement.

KW - A0800

KW - P1200

KW - R0200

UR - http://www.scopus.com/inward/record.url?scp=33744801132&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2006.02.010

DO - 10.1016/j.jnucmat.2006.02.010

M3 - Article

AN - SCOPUS:33744801132

SN - 0022-3115

VL - 351

SP - 216

EP - 222

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3

ER -

The effects of irradiation, annealing and reirradiation on RPV steels

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this