Electrodeposition of Zn–Ni Monolithic Coatings, Characterization, and Corrosion Analysis

被引:1
作者
D. Rashmi
G. P. Pavithra
B. M. Praveen
Deepa Devapal
K. O. Nayana
G. Nagaraju
机构
[1] Alvas Institute of Engineering and Technology,Department of Chemistry
[2] Srinivas University,Department of Chemistry
[3] College of Engineering and Technology,Ceramic Matrix Products Division, Propellants and Special Chemicals Group, PCM Entity
[4] Vikram Sarabhai Space Centre,Department of Chemistry
[5] Bangalore University,Department of Chemistry
[6] Siddaganga Institute of Technology,undefined
来源
Journal of Failure Analysis and Prevention | 2020年 / 20卷
关键词
Zn–Ni alloy; Corrosion; XRD; AFM; SEM;
D O I
暂无
中图分类号
学科分类号
摘要
Bright Zn–Ni coatings were developed by using thiamine hydrochloride as a brightener. Hull cell was used for the optimization of bath constituents and parameters. Galvanostatic electrodeposition from zinc sulfate and nickel sulfate with additives results in Zn-rich solid solution of nickel in zinc η-phase. Surface morphology was observed by scanning electron microscopy, chemical and phase composition determined by X-ray diffraction, and corrosion investigations by electrochemical techniques. Coatings obtained at 5 Adm−2 exhibited more corrosion resistance.
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页码:513 / 522
页数:9
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共 103 条
  • [1] Wilcox GD(1993)Electrodeposited zinc alloy coatings Corros. Sci. 35 1251-1258
  • [2] Gabe DR(2017)Electrodeposition of nanocrystalline Zn/Ni multilayer coatings from single bath: influences of deposition current densities and number of layers on characteristics of deposits Appl. Surf. Sci. 404 101-109
  • [3] Bahadormanesh B(2006)Corrosion resistance of a Zn–Ni electrodeposited alloy obtained with a controlled electrolyte flow and gelatin additive Surf. Coat. Tech. 201 2953-2959
  • [4] Ghorbani M(2012)Evaluation of the effect of deposition bath glycerol content on zinc–nickel electrodeposits on carbon steel Surf. Coat. Tech. 206 2927-2932
  • [5] Kordkolaei NL(2006)Zinc-nickel electroplate as a replacement for cadmium on high strength steels Plat. Surf. Finish. 93 18-22
  • [6] Soares ME(2000)Corrosion behaviour of zinc–nickel coatings, electrodeposited on steel Surf. Coat. Tech. 123 164-172
  • [7] Souza CAC(2000)The metallurgy of zinc-coated steel Prog. Mater Sci. 45 191-271
  • [8] Kuri SE(2004)Microstructure and corrosion resistance of electrodeposited zinc alloy coatings J. Sold State Electr. 8 416-421
  • [9] Pedroza GAG(2010)Corrosion stability of Zn–Co alloys deposited from baths with high and low Co content—The influence of deposition current density Surf. Coat. Tech. 204 2745-2753
  • [10] De Souza CAC(2011)Corrosion resistant Zn-Co alloy coatings deposited using saw-tooth current pulse B. Mater. Sci. 34 1699-1706