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The Code Case N-931 and Ultrasonic Nanocrystal Surface Modification Technology for Improving Service Life and Safety of Nuclear Power Plant
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- 발행기관
- 선문효정학술연구회 바로가기
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- 간행물
- The Journal of Sciences and Innovation for Sustainable Peace(구 The journal of Hyojeong Academia) 바로가기
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- 통권
- Vol. 2 No. 1 (2024.03)바로가기
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- 페이지
- pp.30-36
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- 저자
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- 언어
- 영어(ENG)
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- URL
- https://www.earticle.net/Article/A481809
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원문정보
초록
- 영어
- We are trying to apply surface stress improvement process (SSIP) to the repair and maintenance of nuclear power components, mainly in the United States and Japan. A representative example is applying water jet peening (WJP) and laser peening (LP) technology to parts to extend their lifespan. The biggest problem with the lifespan of nuclear power equipment is the occurrence of stress corrosion cracking (SCC), which is directly related to safety. The SSIP is one of the good ways to mitigate SCC. The Code Case N-931 “Performance and Qualification Criteria for Mitigation of Stress Corrosion Cracking by Surface Stress Improvement: Section III, Division 1 and 3’ was developed since 2017 by the task group “Advanced Surface Stress Improvement Technology” in Korea International Working Group (KIWG) of the American Society of Mechanical Engineers (ASME). This case provides performance and qualification criteria for the pre-service application of a SSIP to items potentially susceptible to SCC, as a means to prevent crack initiation. Mitigation of items to the requirements of this case does not modify or change the in-service inspection (ISI) requirements for those items. This Code Case is to be used for SSIP such as ultrasonic nanocrystal surface modification (UNSM), WJP, LP that satisfy the performance criteria and qualification criteria defined in this case. Two major technical bases for this Code Case are “PVP2022-85151” and “EPRI Report 3002018458”. Brief summary of UNSM technology and two technical bases is introduced.
목차
Abstract
1. Introduction
2. Surface Stress Improvement Processes
2.1. UNSM technology
2.2. WJP technology
2.3. LP technology
3. Development of a ASME Code Case for Application of SSIP
4. Conclusions
References
키워드
ASME Code Case surface stress improvement process (SSIP) ultrasonic nanocrystal surface modification (UNSM) stress corrosion cracking (SCC) small modular reactor (SMR)저자
간행물 정보
발행기관
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- 발행기관명
- 선문효정학술연구회 [Sun Moon Hyojeong Academy Society]
- 설립연도
- 2023
- 분야
- 복합학>학제간연구
- 소개
- Journal of Hyojeong Academia aims to serve as a global platform where researchers and scholars of various disciplines can contribute ideas for our sustainable global community of Co‐existence, Co‐prosperity, and Co‐righteousness. The journal is a multidisciplinary, open‐access, internationally peer‐reviewed academic journal, and it invites all areas of research conducted in the spirit of post materialism including studies centering on God, studies unifying religions and sciences, and studies on all aspects of Co‐existence, Co‐prosperity, and Co‐righteousness.
간행물
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- 간행물명
- The Journal of Sciences and Innovation for Sustainable Peace(구 The journal of Hyojeong Academia)
- 간기
- 반년간
- pISSN
- 2982-9305
- 수록기간
- 2023~2026
- 십진분류
- KDC 238 DDC 289
이 권호 내 다른 논문 / The Journal of Sciences and Innovation for Sustainable Peace(구 The journal of Hyojeong Academia) Vol. 2 No. 1
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