| Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy | |
| Liu, C. Y.1,2; Zhang, B.3; Ma, Z. Y.1; Jiang, H. J.2; Zhou, W. B.4 | |
| Corresponding Author | Ma, Z. Y.(zyma@imr.ac.cn) |
| 2019-01-25 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 772Pages:775-781 |
| Abstract | Sc addition, friction stir processing (FSP), and subsequent solid-solution treatment and aging to peak hardness (T6 treatment) were applied on a 7055 Al alloy. Fine equiaxed grains were obtained after FSP, and the size of the grains was further refined by minor Sc addition. Subsequent solid-solution treatment led to the dissolution of eta phase, and aging led to the precipitation of eta' phase in the FSP samples. The Al-3(Sc,Zr) particles effectively inhibited the grain coarsening in the Sc-containing FSP sample during the T6 process. Thus, a high density of eta' phase and a fine equiaxed grain structure were obtained in the Sc-containing 7055 alloy after FSP and T6 treatment. The special structure endowed this alloy with higher yield strength than the T6 treated 7055 alloy. FSP enhanced the high-temperature internal friction value of the Sc-containing 7055 alloy, and subsequent T6 treatment did not significantly reduce the value. The Sc-containing 7055 alloy exhibited greater high-temperature internal friction value than the T6 samples and the 7055 alloy fabricated using the same processing route. (C) 2018 Elsevier B.V. All rights reserved. |
| Keyword | Al alloy Microstructure Damping capacity Mechanical properties |
| Funding Organization | National Natural Science Foundation of China ; Guangxi Bagui Teams for Innovation and Research ; Guangxi Natural Science Foundation ; Science and Technology Major Project of Guangxi |
| DOI | 10.1016/j.jallcom.2018.09.109 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51601045] ; Guangxi Bagui Teams for Innovation and Research ; Guangxi Natural Science Foundation[2016GXNSFDA380028] ; Science and Technology Major Project of Guangxi[GKAA17202007] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000449651100093 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/130233 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ma, Z. Y. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Guilin Univ Technol, Key Lab New Proc Technol Nonferrous Met & Mat, Minist Educ, Guilin 541004, Peoples R China 3.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China 4.Guangxi Pingguo Baikuang High Tech Aluminum Co LT, Pingguo 531400, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, C. Y.,Zhang, B.,Ma, Z. Y.,et al. Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,772:775-781. |
| APA | Liu, C. Y.,Zhang, B.,Ma, Z. Y.,Jiang, H. J.,&Zhou, W. B..(2019).Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy.JOURNAL OF ALLOYS AND COMPOUNDS,772,775-781. |
| MLA | Liu, C. Y.,et al."Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy".JOURNAL OF ALLOYS AND COMPOUNDS 772(2019):775-781. |
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