한국원자력학회:학술대회논문집 (Proceedings of the Korean Nuclear Society Conference)
- 한국원자력학회 1995년도 춘계학술발표회논문집(2)
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- Pages.635-640
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- 1995
Thermal Aging Embrittlement in LWR Primary Pressure Boundary Components
- Kim, Sunki (Hanyang University) ;
- Kim, Yongsoo (Hanyang University) ;
- Wonmok Jae (Hanyang University)
- 발행 : 1995.05.01
초록
Two techniques for the verification of the phase separation in ferrite phase of primary pressure bounary component materials, the primary cause of thermal aging embrittlement, are presented. Data base of room-temperature Charpy V-notch impact energy during reactor service was estimated as a measure of the degree of embrittlement. The serviceable period of CF-3 and CF-8 alloys as the primary pressure boundary components may be acceptably extended for 60 years of lifetime. However, the integrity of CF-8M alloys can be degraded seriously after several years of service in the nuclear reactor.
키워드