Effects of different initial states on dynamic tensile properties and microstructure of 7075 aluminum alloy
文献类型：期刊论文
| 作者 | Peng, Wenfei1,2,4; Gao, Yinghao1; Li, He1,2; Lu, Longhui1; Ma, Kai3; Lin, Longfei1,2; Shao, Yiyu1,2; Shi, Tongya4 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2024 |
| 卷号 | 891页码:13 |
| 关键词 | Dynamic tensile property Artificial aging 7075 aluminum alloy Microstructure |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2023.145939 |
| 通讯作者 | Li, He(lihe@nbu.edu.cn) ; Ma, Kai(kma16s@imr.ac.cn) |
| 英文摘要 | In the present work, the effects of solution quenching (SQ), under-aging (UA), peak-aging (PA), and over-aging (OA) on the dynamic tensile properties of 7075 aluminum alloy have been systematically studied by Hopkinson tensile bar. The results show that the dynamic deformation behavior of the alloy is remarkably affected by the initial aging state. As the aging time increases, the tensile strength of the material first increases and then decreases. Among them, the alloy in the UA state has the highest tensile strength and strain hardening rate. Besides, the evolution of microstructures such as grains, dislocations and precipitation phases has been quantitatively analyzed by electron backscattered diffraction (EBSD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). It has been found that with the increase of aging time, the grain size gradually becomes refined, the density of geometrically necessary dislocations gradually decreases, and the alloy deformation grain distribution is the most uniform in the UA state. Besides, dynamic stretching promotes the growth of precipitated phases, and a large number of fine eta ' phases are distributed in the matrix in the UA state, and the interaction of the fine eta ' phases with the dislocations greatly improves the strain hardening rate and tensile strength of the material. |
| 资助项目 | Key Laboratory of Impact and Safety Engineering, Ministry of Education and Part Rolling Key Laboratory of Zhejiang, Ningbo University, Ningbo, China ; National Natural Science Foundation of China[52075272] ; National Natural Science Foundation of China[52205386] ; Ningbo Science and Technology Plan[2021Z099] ; Ningbo Science and Technology Plan[2023Z037] ; Natural Science Foundation of Ningbo[2023J079] ; Guangxi Key Research and Development Plan[AA23023031] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001128278700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Key Laboratory of Impact and Safety Engineering, Ministry of Education and Part Rolling Key Laboratory of Zhejiang, Ningbo University, Ningbo, China ; National Natural Science Foundation of China ; Ningbo Science and Technology Plan ; Natural Science Foundation of Ningbo ; Guangxi Key Research and Development Plan |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, He; Ma, Kai |
| 作者单位 | 1.Ningbo Univ, Zhejiang Prov Key Lab Part Rolling Technol, Ningbo 315211, Peoples R China 2.Ningbo City Collaborat Innovat Ctr New Energy Vehi, Ningbo 315211, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Ningbo Univ, Key Lab Impact & Safety Engn, Minist Educ, Ningbo 315211, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Wenfei,Gao, Yinghao,Li, He,et al. Effects of different initial states on dynamic tensile properties and microstructure of 7075 aluminum alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,891:13. |
| APA | Peng, Wenfei.,Gao, Yinghao.,Li, He.,Lu, Longhui.,Ma, Kai.,...&Shi, Tongya.(2024).Effects of different initial states on dynamic tensile properties and microstructure of 7075 aluminum alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,891,13. |
| MLA | Peng, Wenfei,et al."Effects of different initial states on dynamic tensile properties and microstructure of 7075 aluminum alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 891(2024):13. |
入库方式： OAI收割
来源：金属研究所
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