Electrochemical noise analysis of cavitation erosion corrosion resistance of NbC nanocrystalline coating in a 3.5 wt% NaCl solution

doi:10.1016/j.surfcoat.2021.127133

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	Electrochemical noise analysis of cavitation erosion corrosion resistance of NbC nanocrystalline coating in a 3.5 wt% NaCl solution
	Peng, Shuang 5; Xu, Jiang 5; Li ZY(李正阳)4; Jiang, Shuyun 3; Xie, Zong-Han 2; Munroe, Paul 1
刊名	SURFACE & COATINGS TECHNOLOGY
	2021-06-15
卷号	415 页码:16
关键词	NbC nanocrystalline coating Cavitation erosion-corrosion Electrochemical noise Cyclic polarization
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2021.127133
通讯作者	Xu, Jiang(xujiang73@nuaa.edu.cn)
英文摘要	To combat cavitation erosion-corrosion damage inflicted upon mechanical components in marine applications, NbC nanocrystalline coatings were synthesized by a double cathode glow discharge assisted reactive sputtering method. The coating comprised equiaxed B1-NaCl-type NbC grains with an average grain size of similar to 10 nm and a strong NbC (200)-oriented texture by TEM observation. The electrochemical response of the coating exposed to a 3.5 wt% NaCl solution with and without the influence of cavitation was monitored by electrochemical noise (EN) measurements, in addition to open circuit potential and cyclic polarization. To differentiate the cavitation erosion-corrosion resistance between the NbC coating and a reference Ti-6Al-4V alloy substrate, the EN data were further evaluated, based on a series of analyses, including frequency domain, time-domain, shot noise and wavelet transform. For the Ti-6Al-4V alloy, with increasing output power, the noise resistance (R-n) and slope (k values) of potential and current power spectral density (PSD) decreased, and the average charge in each corrosion event (q) and the total energy of d series crystals increased markedly at the output power levels above 400 W, indicative of a high propensity of pitting corrosion for this alloy. Conversely, the R-n and k values for the NbC coating were found to be almost independent of the output power, and the charge of the corrosion event and the total energy of the d series crystals were much lower than that of the Ti-6Al-4V alloy. The findings garnered from analyzing the EN signals is in accord with what were uncovered from examining the eroded surface morphologies, suggesting that the EN method might offer a reliable and effective tool to probe the cavitation erosion-corrosion behavior in developing durable material.
分类号	一类
资助项目	General Program of the National Natural Science Foundation of China[52075245] ; Key Program of the National Natural Science Foundation of China[51635004]
WOS关键词	NIOBIUM CARBIDE ; STAINLESS-STEEL ; SHOT-NOISE ; BEHAVIOR ; WEAR ; ALLOY ; PARAMETERS ; DEPOSITION ; TRANSFORM ; FILM
WOS研究方向	Materials Science ; Physics
语种	英语
WOS记录号	WOS:000655570000015
资助机构	General Program of the National Natural Science Foundation of China ; Key Program of the National Natural Science Foundation of China
其他责任者	Xu, Jiang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86813]
专题	宽域飞行工程科学与应用中心
作者单位	1.Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia 2.Univ Adelaide, Sch Mech Engn, Adelaide, SA 5005, Australia; 3.Southeast Univ, Dept Mech Engn, 2 Si Pai Lou, Nanjing 210096, Peoples R China; 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 5.Nanjing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, 29 Yudao St, Nanjing 210016, Peoples R China;
推荐引用方式 GB/T 7714	Peng, Shuang,Xu, Jiang,Li ZY,et al. Electrochemical noise analysis of cavitation erosion corrosion resistance of NbC nanocrystalline coating in a 3.5 wt% NaCl solution[J]. SURFACE & COATINGS TECHNOLOGY,2021,415:16.
APA	Peng, Shuang,Xu, Jiang,李正阳,Jiang, Shuyun,Xie, Zong-Han,&Munroe, Paul.(2021).Electrochemical noise analysis of cavitation erosion corrosion resistance of NbC nanocrystalline coating in a 3.5 wt% NaCl solution.SURFACE & COATINGS TECHNOLOGY,415,16.
MLA	Peng, Shuang,et al."Electrochemical noise analysis of cavitation erosion corrosion resistance of NbC nanocrystalline coating in a 3.5 wt% NaCl solution".SURFACE & COATINGS TECHNOLOGY 415(2021):16.