Microstructure evolution and precipitation strengthening behaviors of non-isothermal aged SiC/7xxxAl composite
文献类型：期刊论文
| 作者 | Zhang, R.1,2,3; Zhu, S. Z.1; Liu, Z. Y.1; Ke, Y. B.3,4; Wang, D.1; Xiao, B. L.1; Ma, Z. Y.1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2025-08-10 |
| 卷号 | 226页码:205-217 |
| 关键词 | SiC/7 xxx Al composite Non-isothermal aging Mechanical properties Precipitation strengthening Small-angle neutron scattering |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2024.11.043 |
| 通讯作者 | Zhu, S. Z.(szzhu16s@imr.ac.cn) ; Ke, Y. B.(keyb@ihep.ac.cn) |
| 英文摘要 | Non-isothermal aging (NIA) treatments have presented significant advantages in improving the comprehensive performance and aging hardening efficiency of the 70 0 0 series aluminum alloys, but there is no attention paid to their composites. This study takes a linear heating aging process as an example to reveal the precipitation behaviors of a 15 vol.% SiC/7085Al composite as well as its impact on mechanical properties using differential scanning calorimetry, transmission electron microscopy, small-angle neutron scattering, hardness measurements, and tensile testing. The results indicated the formation of GP (I, II) zones, eta' and eta precipitates in sequence, leading to the hardness and strength initially increasing and then decreasing with rising NIA temperatures. The maximums were reached at 183 degrees C, corresponding to the appearance of eta' precipitates in large quantities. Owing to the rapid temperature rise during the NIA process, the precipitates entered the coarsening and redissolution stage before they were entirely formed, resulting in reduced peak strength compared to the T6 treatment. The composite exhibited a more significant reduction in strength than the 7085Al alloy because: (i) the annihilation of vacancies suppressed the formation of GPII zones, thereby weakening their transition to eta' precipitates; (ii) quenching dislocations promoted the coarsening of precipitates. An improved NIA process, incorporating both heating and cooling aging treatments, was effectively designed with the assistance of in-situ SANS technology to address this issue, which allows for achieving strength comparable to that after the T6 treatment with only 15 % of the aging time consumption. This research fills the gap in investigating the NIA precipitation behaviors of aluminum matrix composites, providing guidance for the formulation of NIA schedules. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | Na-tional Key R & D Program of China[2021YFA160 070 0] ; Na-tional Natural Science Foundation of China[U22A20114] ; Na-tional Natural Science Foundation of China[52322106] ; Na-tional Natural Science Foundation of China[52192595] ; Na-tional Natural Science Foundation of China[52301200] ; China Postdoctoral Science Foundation[2023M733573] ; China Postdoctoral Science Foundation[JZHKYPT-2021-01] ; Natural Science Foun-dation of Liaoning Province[2023-BS-020] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001409780600001 |
| 出版者 | ELSEVIER |
| 资助机构 | Na-tional Key R & D Program of China ; Na-tional Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Natural Science Foun-dation of Liaoning Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhu, S. Z.; Ke, Y. B. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Spallat Neutron Source Sci Ctr, Dongguan 523803, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, R.,Zhu, S. Z.,Liu, Z. Y.,et al. Microstructure evolution and precipitation strengthening behaviors of non-isothermal aged SiC/7xxxAl composite[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,226:205-217. |
| APA | Zhang, R..,Zhu, S. Z..,Liu, Z. Y..,Ke, Y. B..,Wang, D..,...&Ma, Z. Y..(2025).Microstructure evolution and precipitation strengthening behaviors of non-isothermal aged SiC/7xxxAl composite.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,226,205-217. |
| MLA | Zhang, R.,et al."Microstructure evolution and precipitation strengthening behaviors of non-isothermal aged SiC/7xxxAl composite".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 226(2025):205-217. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。