| Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate | |
| Zhang, Zhichao; Liu, Fuchun1; Han, En-Hou; Xu, Long; Uzoma, Paul C. | |
| Corresponding Author | Liu, Fuchun(fcliu@imr.ac.cn) |
| 2019-07-25 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 370Pages:53-68 |
| Abstract | Pure Al 2024 coating and Al 2024-Al2O3 composite coatings were deposited on AA 2024-T3 alloy substrates using low-pressure cold gas spray (LPCGS). The content of Al2O3 in the feedstock was 20 wt%, 40 wt% and 60 wt %, respectively. The porosity, surface roughness, adhesion and surface residual stress of the coatings were analyzed. Electrochemical tests were carried out in neutral 3.5 wt% NaCl solution to evaluate the effects of Al2O3 on the corrosion behavior of the coatings. The results showed that the Al 2024-20 wt% Al2O3 composite coating possessed the lowest porosity (0.55%), relatively higher adhesion strength (50.68 MPa) and surface residual compressive stress (48.3 MPa) among the cold sprayed coatings. The results of corrosion tests revealed that the cold sprayed coatings provided sacrificial anode protection for the AA 2024-T3 substrate and that Al 2024-20 wt% Al2O3 composite coating exhibited the best corrosion resistance. |
| Keyword | Aluminum alloy Low-pressure cold spray Al 2024-Al2O3 coating Aircraft repairing EIS |
| Funding Organization | Guangzhou Industry-University-Research Collaborative Innovation Alliance Special Project |
| DOI | 10.1016/j.surfcoat.2019.04.082 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Guangzhou Industry-University-Research Collaborative Innovation Alliance Special Project[201604046014] |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:000471083100007 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/134135 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Fuchun |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Zhichao,Liu, Fuchun,Han, En-Hou,et al. Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate[J]. SURFACE & COATINGS TECHNOLOGY,2019,370:53-68. |
| APA | Zhang, Zhichao,Liu, Fuchun,Han, En-Hou,Xu, Long,&Uzoma, Paul C..(2019).Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate.SURFACE & COATINGS TECHNOLOGY,370,53-68. |
| MLA | Zhang, Zhichao,et al."Effects of Al2O3 on the microstructures and corrosion behavior of low-pressure cold gas sprayed Al 2024-Al2O3 composite coatings on AA 2024-T3 substrate".SURFACE & COATINGS TECHNOLOGY 370(2019):53-68. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment