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
Van Hung Dao (Korea Research Institute of Standard and Science) Hee Soo Yun (Korea Research Institute of Standard and Science) Jeon Sang Koo (Korea Research Institute of Standard and Science) Jaeyeong Park (Korea Research Institute of Standard and Science) Seung Hoon Nahm (Korea Research Institute of Standard and Science)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.8
발행연도
2024.8
수록면
2,143 - 2,157 (15page)
DOI
10.1007/s12540-024-01638-4

이용수

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

초록· 키워드

오류제보하기
This study discusses the thermomechanical fatigue (TMF) behavior of a first-generation Ni-based single-crystal superalloy. Tests were conducted for in-phase (IP) and out-of-phase (OP) TMF under identical strain conditions within 450–950 °C. The failure characteristics were investigated by studying the microstructural changes that occur because of TMF damage. During IP TMF, microscopic cracks were initiated at sites concentrated by localized stress within the material, where thegamma prime (γ′)-strength phase was dissolved, reducing the overall strength of the alloy. By contrast, the oxide layer formedon the surface makes it more susceptible to crack formation under OP TMF. The presence of deformation bands along the(111) crystallographic planes was attributed to the promotion of crack growth. The fatigue life of IP TMF was significantlylonger than that of OP TMF. However, this difference decreased as the mechanical strain amplitude increased until a changein the trend occurred for the highest amplitude. The microstructures were analyzed in detail to discuss the differences in thechanges of γ' morphology during IP and OP TMF.

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!

최근 본 자료

전체보기

댓글(0)

0