| Influence of sealing treatment on the corrosion behavior of HVAF sprayed Al-based amorphous/nanocrystalline coating | |
| Zhang, L. M.1,2; Zhang, S. D.3; Ma, A. L.1; Hu, H. X.1; Zheng, Y. G.1; Yang, B. J.3; Wang, J. Q.3 | |
| Corresponding Author | Zheng, Y. G.(ygzheng@imr.ac.cn) ; Wang, J. Q.(jqwang@imr.ac.cn) |
| 2018-11-15 | |
| Source Publication | SURFACE & COATINGS TECHNOLOGY
 |
| ISSN | 0257-8972 |
| Volume | 353Pages:263-273 |
| Abstract | Al-based amorphous/nanocrystalline coating with a low porosity (0.42%) and a high amorphous content (80.3%) was fabricated by high velocity air-fuel spraying on aluminum alloy 2024. This thin amorphous/nanocrystalline coating with alpha-Al nanocrystals precipitated in amorphous matrix displays good short-term corrosion resistance, while the corrosion resistance decreases rapidly with increased immersion time. Sealing treatment can effectively close the connecting pores and reduce the porosity defects of coating, thereby improving the corrosion resistance. Among the three selected sealants, stearic acid exhibits the best sealing effect on Al-based amorphous/nanocrystalline coating due to its good impermeability and hydrophobicity, followed by potassium dichromate and nickel acetate. The sealing mechanisms of the three sealants are discussed in terms of reactions at the coating/sealant interface and hydrophobicity of stearic acid. |
| Keyword | Al-based amorphous/nanocrystalline coating Sealing treatment Polarization EIS XPS Corrosion resistance |
| Funding Organization | National Key Research and Development Program of China ; Civil Aircraft Project of Ministry of Industry and Information Technology ; National Natural Science Foundation of China |
| DOI | 10.1016/j.surfcoat.2018.08.086 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2018YFC0808503] ; Civil Aircraft Project of Ministry of Industry and Information Technology[MJ2015F022] ; National Natural Science Foundation of China[51471166] ; National Natural Science Foundation of China[51131006] |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| WOS ID | WOS:000447117400030 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/129880 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zheng, Y. G.; Wang, J. Q. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, L. M.,Zhang, S. D.,Ma, A. L.,et al. Influence of sealing treatment on the corrosion behavior of HVAF sprayed Al-based amorphous/nanocrystalline coating[J]. SURFACE & COATINGS TECHNOLOGY,2018,353:263-273. |
| APA | Zhang, L. M..,Zhang, S. D..,Ma, A. L..,Hu, H. X..,Zheng, Y. G..,...&Wang, J. Q..(2018).Influence of sealing treatment on the corrosion behavior of HVAF sprayed Al-based amorphous/nanocrystalline coating.SURFACE & COATINGS TECHNOLOGY,353,263-273. |
| MLA | Zhang, L. M.,et al."Influence of sealing treatment on the corrosion behavior of HVAF sprayed Al-based amorphous/nanocrystalline coating".SURFACE & COATINGS TECHNOLOGY 353(2018):263-273. |
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