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IGSCC DISPOSITION CURVES FOR ALLOY 82 IN BWR NORMAL WATER CHEMISTRY
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0003-1498-5691
Ringhals AB.
OKG AB.
Forsmarks KraftGrupp AB.
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2007 (English)In: 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems, 2007, 1353-1363 p.Conference paper, Published paper (Other academic)
Abstract [en]

In many nuclear power plants, areas of susceptible material in the reactor systems are replaced or mitigated. Many of the areas where the nickel-based weld metal Alloy 182 have been used, are not replaceable but need to be mitigated. One possibility to mitigate is to make known susceptible material non-accessible for the reactor coolant water by covering it with less susceptible materials. One such possibility that has been utilized frequently in the Swedish Boiling Water Reactor (BWR) fleet is in-lay welding of butt welds in the main circulation and feed water loops with the less susceptible Alloy 82, which has fewer reported failure cases under these conditions.

The study focuses on the development of a Factor of Improvement between Alloy 182 and the replacement, Alloy 82 material. As part of this, a disposition curve under conditions relevant for Normal Water Chemistry, NWC, in the Swedish BWRs is presented.

Place, publisher, year, edition, pages
2007. 1353-1363 p.
Keyword [en]
Crack growth, BWR, disposition curve, water chemistry, structural integrity, Nickel based alloys, Alloy 82, Factor of improvement
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-78900ISBN: 978-160560059-8 (print)ISBN: 978-160560059-8 (print)OAI: oai:DiVA.org:kth-78900DiVA: diva2:493010
Conference
13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems
Note
QC 20120228Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2012-02-28Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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More styles
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  • de-DE
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  • Other locale
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Output format
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