Influence of sealing treatment on the corrosion behavior of HVAF sprayed Al-based amorphous/nanocrystalline coating

doi:10.1016/j.surfcoat.2018.08.086

CORC > 金属研究所 > 中国科学院金属研究所

	Influence of sealing treatment on the corrosion behavior of HVAF sprayed Al-based amorphous/nanocrystalline coating
	Zhang, LM ; Zhang, SD ; Ma, AL ; Hu, HX ; Zheng, YG ; Yang, BJ ; Wang, JQ
刊名	SURFACE & COATINGS TECHNOLOGY
	2018-11-15
卷号	353 页码:263-273
关键词	Al-based amorphous/nanocrystalline coating Sealing treatment Polarization EIS XPS Corrosion resistance
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2018.08.086
英文摘要	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.
学科主题	Materials Science, Coatings & Films ; Physics, Applied
语种	英语
WOS记录号	WOS:000447117400030
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79823]
专题	金属研究所_中国科学院金属研究所
作者单位	1.[Zhang, L. M. 2.Ma, A. L. 3.Hu, H. X. 4.Zheng, Y. G.] Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Liaoning, Peoples R China 5.[Zhang, L. M.] Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 6.[Zhang, S. D. 7.Yang, B. J. 8.Wang, J. Q.] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, LM,Zhang, SD,Ma, AL,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, LM.,Zhang, SD.,Ma, AL.,Hu, HX.,Zheng, YG.,...&Wang, JQ.(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, LM,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.