In this study, the samples of LA43M Mg–Li alloy were compressed to the true strains of 0.12, 0.16, 0.36 and 0.60 under300 °C and the strain rate of 0.1 s−1. Under this condition, the stress–strain curves present a special bimodal phenomenon att...
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https://www.riss.kr/link?id=A107929652
Yi Li (Shandong University) ; Yanjin Guan (Shandong University) ; Hu Chen (Shandong University) ; Jiqiang Zhai (Shandong University) ; Jun Lin (Shandong University) ; Liang Chen (Shandong University)
2021
English
KCI등재,SCI,SCIE,SCOPUS
학술저널
4195-4203(9쪽)
0
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
In this study, the samples of LA43M Mg–Li alloy were compressed to the true strains of 0.12, 0.16, 0.36 and 0.60 under300 °C and the strain rate of 0.1 s−1. Under this condition, the stress–strain curves present a special bimodal phenomenon att...
In this study, the samples of LA43M Mg–Li alloy were compressed to the true strains of 0.12, 0.16, 0.36 and 0.60 under300 °C and the strain rate of 0.1 s−1. Under this condition, the stress–strain curves present a special bimodal phenomenon atthe early deformation stage, which is caused by twinning and dynamic recrystallization. In the process of hot compression,extension twins generated first. Twinning accommodated strain and the glide of twinning dislocations dissipated local strainenergy, resulting in the first local stress drop. Then extension twins coarsened and devoured all the matrix, leading to thechange of grain orientation. Subsequently, dislocations accumulated at the grain boundaries and resulted in the increase instress. With further strain, dynamic recrystallization occurred, discontinuous dynamic recrystallization is the main dynamicrecrystallization mechanism. The generation of dynamic recrystallization resulted in the strain softening and leaded tothe second local stress drop. Twinning retards the occurrence dynamic recrystallization and has a crucial influence on themicrostructure development during the hot compression of LA43M.
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학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
2020-01-01 | 평가 | 등재학술지 유지 (해외등재 학술지 평가) | |
2009-12-29 | 학회명변경 | 한글명 : 대한금속ㆍ재료학회 -> 대한금속·재료학회 | |
2008-01-01 | 평가 | SCI 등재 (등재유지) | |
2005-01-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
2004-01-01 | 평가 | 등재후보 1차 PASS (등재후보1차) | |
2002-01-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 2.05 | 0.91 | 1.31 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
1.03 | 0.86 | 0.678 | 0.22 |