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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 AuthorZheng, Y. G.(ygzheng@imr.ac.cn) ; Wang, J. Q.(jqwang@imr.ac.cn)
2018-11-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume353Pages:263-273
AbstractAl-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.
KeywordAl-based amorphous/nanocrystalline coating Sealing treatment Polarization EIS XPS Corrosion resistance
Funding OrganizationNational Key Research and Development Program of China ; Civil Aircraft Project of Ministry of Industry and Information Technology ; National Natural Science Foundation of China
DOI10.1016/j.surfcoat.2018.08.086
Indexed BySCI
Language英语
Funding ProjectNational 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 AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000447117400030
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129880
Collection中国科学院金属研究所
Corresponding AuthorZheng, Y. G.; Wang, J. Q.
Affiliation1.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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