NDLI: Ageing Management of Cast Stainless Steel Components in French PWRs

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Faidy, Claude
Copyright Year	2012
Abstract	During the past 20 years many works have been done on Ageing Management Program (AMP) of Safety classed components in EDF. To-day, EDF is starting the 3rd ten-year shutdown of all these 3-loop plants (34 plants). During the associated Safety Review, a specific task is devoted to ageing effects and management of all the safety concerned components. A large list of components has been reviewed: mechanical, civil engineering, instrumentation and control, cables, non metallic components. Cast duplex stainless steel components are an example of these reviews. This material is used in many PWR components: elbows, pump casing, valves…A specific Ageing Management Program has been developed in France in the past 20 years in order to consider thermal ageing consequences on different components. This program considers: - Degradation mechanism understanding; - Diagnostic: what are the more sensitive components; - Monitoring in operation: thermal power; - In-service inspection: radiography and other laboratory methods; - Flaw evaluation and material properties; - Replacement of elbows, alone or associated to steam generator replacement. The paper will give a short description of each topic. In the moment EDF is planning a large replacement program of CF8M elbows to assure safety margins for 60 years of operation.
Sponsorship	Pressure Vessels and Piping Division
Starting Page	337
Ending Page	344
Page Count	8
File Format	PDF
ISBN	9780791855003
DOI	10.1115/PVP2012-78843
Volume Number	Volume 1: Codes and Standards
Conference Proceedings	ASME 2012 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2012-07-15
Publisher Place	Toronto, Ontario, Canada
Access Restriction	Subscribed
Subject Keyword	Pumps Stainless steel Materials properties Boilers Instrumentation Safety In-service inspection Pressurized water reactors Civil engineering Thermal energy Cables
Content Type	Text
Resource Type	Article

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