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 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
Author:	Khan, F (Professor Faisal Khan)
ID Code:	94537
Year Published:	2010
Web of Science® Times Cited:	2
Deposited By:	NC Maritime Engineering and Hydrodynamics
Deposited On:	2014-09-11
Last Modified:	2014-09-11
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