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
Tingting Guo (Kunming University of Science and Technology) Yulei Tai (Hangzhou Medical College) Lu Jiang (Deakin University) Zhen Zhang (Hefei University of Technology) Jun Wang (Deakin University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.30 No.6
발행연도
2024.6
수록면
1,527 - 1,537 (11page)
DOI
10.1007/s12540-023-01597-2

이용수

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

초록· 키워드

오류제보하기
Dilute Mg–Bi alloy is a recently developed alloy system with good extrudability and ductility. However, there is a limitedunderstanding of the influence of extrusion temperature on its microstructure when extruded at lower temperatures (≤ 300 °C),which restricts the further enhancement of its mechanical properties. In this work, we investigated the microstructureevolution at multiscale levels (micro-scale, nanoscale, and atomic scale) affected by different extrusion temperatures. Theresults show that particle-stimulated nucleation by the pre-existed Mg3Bi2particle can significantly refine the grains (evendown to a grain size of ~ 80 nm), and it is a dominant dynamic recrystallized mechanism, especially at 100 °C and 200 °C,though, with negligible influence on the final texture. In addition, dynamic precipitation with nano-sized precipitates (tensof nanometers) occurs in these temperatures, and they can provide the Zenner pinning effect to hinder grain growth. Mostsignificantly, deformation-induced bismuth clusters (which can potentially be tailored to provide significant strengtheningwithout deteriorating the ductility) were observed both in the matrix and at grain boundaries in all the extrusion temperatures. As the temperature increases, the size and the density of these clusters increases. Finally, an attempt at quantificationof the strengthening contributions from the grain size, nanoparticles, clusters, and solid solution is provided, indicating thesignificant effect of extrusion temperature on varying these contributions.

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