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Journal article

Secondary precipitation within the cementite phase of reactor pressure vessel steels

Abstract:
Solute clustering is known to play a significant role in the embrittlement of reactor pressure vessel (RPV) steels. In this study, previously unobserved manganese-, nickel-, and silicon-rich precipitates in the cementite phase of a thermally aged, low copper RPV steel are characterised at the atomic scale via atom probe tomography. Additionally, copper-rich precipitates are observed in the cementite phase of a thermally aged, high copper RPV steel. Due to their secluded nature, these secondary precipitates could be utilised as indicators of the time-temperature exposure of RPVs and assist in assessing remnant lifetime.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.scriptamat.2015.12.039

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author


Publisher:
Elsevier
Journal:
Scripta Materialia More from this journal
Volume:
115
Pages:
118-122
Publication date:
2016-01-25
Acceptance date:
2015-12-31
DOI:
ISSN:
1359-6462


Keywords:
Pubs id:
pubs:610398
UUID:
uuid:16ad7311-5fa0-421c-8402-9f7a95810f00
Local pid:
pubs:610398
Source identifiers:
610398
Deposit date:
2016-06-24
ARK identifier:

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