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Reliability based inspection of nickel-based alloy welds in boiling water reactor environment


Khalifa, M and Khan, F and Haddara, M, Reliability based inspection of nickel-based alloy welds in boiling water reactor environment, Reliability Engineering and System Safety, 95, (5) pp. 494-498. ISSN 0951-8320 (2010) [Refereed Article]

DOI: doi:10.1016/j.ress.2009.12.003


Stress corrosion cracking (SCC) problems are routinely observed in boiling water reactor (BWR) units. Nickel-based alloy welds are commonly used in BWR units; the nickel content of the material improves resistance to stress corrosion cracking. However, stress corrosion cracking is still a problem for these welds. When a crack is detected, a decision whether an immediate repair in needed has to be made. A model for estimating reliability of BWR nickel-based alloys welds subjected to SCC using non-destructive inspection techniques is introduced. The proposed methodology and model has been illustrated through a numerical example to estimate the required re-inspection interval in order to keep the target reliability level. © 2009 Elsevier Ltd. All rights reserved.

Item Details

Item Type:Refereed Article
Keywords:Nickel-based alloys welds; Non-destructive inspection; Probability of detection function; Reliability based inspection; Stress corrosion cracking (SCC); Nickel based alloy; Nickel-based alloys welds; Non destructive inspection; Numerical example
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Mineral Resources (Excl. Energy Resources)
Objective Group:Environmentally sustainable mineral resource activities
Objective Field:Environmentally sustainable mineral resource activities not elsewhere classified
UTAS Author:Khan, F (Professor Faisal Khan)
ID Code:94537
Year Published:2010
Web of Science® Times Cited:3
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2014-09-11
Last Modified:2014-09-11

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