A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy

doi:10.20964/2016.12.39

IMR OpenIR

	A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy
	Li, Q. P.1,2; Yan, Z. Q.2,3; Xu, Q.1; Zhang, B.2; Sun, S.3; Liu, J. G.2; Yan, C. W.2
通讯作者	Li, Q. P.(qpli@imr.ac.cn)
	2016-12-01
发表期刊	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
ISSN	1452-3981
卷号	11 期号:12 页码:10675-10689
摘要	In order to further improve the corrosion resistance of the chromium-free Ti-Zr conversion coating on 2024 aluminum alloy (AA2024), a novel Ti-Zr based conversion coating on AA2024 is successfully prepared by introducing the cathodic inhibitor of benzimidazole into the Ti-Zr conversion solution. After the conversion treatment, AA2024 substrate is well covered with the porous Ti-Zr conversion coating composed of the micron-sized particles. And the Ti-Zr conversion coating mainly consists of the metallic oxide (TiO2, ZrO2, Al2O3), metallic fluoride (ZrF4 and AlF3) and C-N complex. More important is that there are no apparent corrosion products or detects could be observed during the whole 168 h NSS test, indicating the significantly excellent corrosion resistance for AA2024 with Ti-Zr conversion coating compared with other chrome-free conversion coatings. The electrochemical measurements indicate the corrosion resistance of the Ti-Zr conversion coating is not so outstanding at the initial stage, what is worth cherishing is that its anti-corrosion property is gradually improving in the following period. Therefore, the Ti-Zr conversion coating with excellent corrosion resistance might be a promising high-performance protective coating for AA2024 compared with other chrome-free conversion coating.
关键词	2024 aluminum alloy Benzimidazole Ti-Zr conversion coating Corrosion resistance
DOI	10.20964/2016.12.39
收录类别	SCI
语种	英语
WOS研究方向	Electrochemistry
WOS类目	Electrochemistry
WOS记录号	WOS:000391039000071
出版者	ESG
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/123534
专题	中国科学院金属研究所
通讯作者	Li, Q. P.
作者单位	1.Northeastern Univ, Sch Met, Shenyang 110142, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China 3.Shenyang Univ Technol, Sch Sci, Shenyang 110870, Peoples R China
推荐引用方式 GB/T 7714	Li, Q. P.,Yan, Z. Q.,Xu, Q.,et al. A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2016,11(12):10675-10689.
APA	Li, Q. P..,Yan, Z. Q..,Xu, Q..,Zhang, B..,Sun, S..,...&Yan, C. W..(2016).A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,11(12),10675-10689.
MLA	Li, Q. P.,et al."A high-performance Ti-Zr Based Chromium-Free Conversion Coating on 2024 Aluminum Alloy".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 11.12(2016):10675-10689.