Integrity assessment of aged and on-site welded joints in LMFR

Wakai, Takashi ; Onizawa, Takashi ; Ando, Masanori ; Aoto, Kazumi ; Martin, L.*

For elongation of the plant life, damaged pipes and/or components should be replaced during the plant service period. In this case, some on-site welded joints may take place. In order to assess the structural integrity of such on-site welded joints, metallurgical examination and mechanical tests have been conducted. Comparing the microstructures of aged factory welded joints and those of newly produced on-site welded joints made of an austenitic stainless steel, the influence of heat input during the on-site welding process on the integrity of the joints are discussed.

Language	:	English
Journal	:	Proceedings of Creep and Fracture in High Temperature Components-design and life Assessment Issues (CD-ROM)
Volume	:
Number	:
Pages	:	11 Pages
Publication Year/Month	:	2005/09
Meeting title	:	Creep and Fracture in High Temperature Components-Design and Life Assessment Issues
Held date	:	2005/09
Location (city)	:	London
Location (country)	:	U.K.
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Keywords	:	no keyword
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Registration No. : 09-2005-0046
JAEA Abstracts No. :
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