메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
Se‑Mi Hyun (Korea University) Seokmin Hong (Korea Atomic Energy Research Institute) Min‑Chul Kim (Korea Atomic Energy Research Institute) Jongmin Kim (Korea Atomic Energy Research Institute) Seok Su Sohn (Korea University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.28 No.12
발행연도
2022.12
수록면
2,907 - 2,918 (12page)
DOI
10.1007/s12540-022-01188-7

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
SA508 Gr.1A low-alloy steel is used for main steam line piping in nuclear power plants. The yield strength and J-R fractureresistance of the piping material must be high in order to apply the leak-before-break concept. In this study, intercritical heattreatment (IHT) was applied to two SA508 Gr.1A low-alloy steels having different chemical compositions, namely, samplesC and P; the latter containing Mo and V. Their microstructures, tensile properties, impact properties, and J-R fractureresistances were evaluated, and the effects of IHT on the mechanical properties of the steels were analyzed. After IHT, finegrains formed at grain boundaries and coarse cementite decomposed, which greatly improved toughness without reducingthe strength. Further, a model to predict the J-R fracture resistance (JIc) of the SA508 Gr.1A low-alloy steel was developedby considering the microstructural and mechanical factors that affect the J-R fracture resistance. According to the JIc resultsof 12 kinds of SA508 Gr.1A low alloy steel, subjected to different heat treatments, the JIc was linearly proportional to thenumber of effective grains (N) contained in the plastic zone, which showed that N is the main factor affecting JIc. Furthermore,the yield and tensile strengths were considered to compensate for the strength difference owing to the different chemicalcompositions. The JIc prediction model was derived considering the effective grain size, plastic zone size, and tensile properties.The predicted JIc values agreed well with the test JIc values.

목차

등록된 정보가 없습니다.

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0