Electrochemical behaviour of ternary Ni-Zn-P thin films deposition on steel substrate

Ana Maria Popescu, Vasile Soare, Marian Burada, Dumitru Mitrică, Ionut Constantin, Viorel Bădiliţă, Florin Minculescu, Cosmin Cotrut, Elena Ionela Neacsu, Cristina Donath, Virgil Constantin

Research output: Contribution to journal › Article

Abstract

Ternary Ni-Zn-P alloy thin films with a thickness of 15-20 µm are considered as a replacement for cadmium sacrificial coatings for anticorrosive protection of steel parts working in highly corrosive media. Anticorrosive Ni-Zn-P thin films has been electrochemically deposited from aqueous sulphate solutions on carbon steel substrate. The influence of bath composition (variable ZnSO ₄ ·7H ₂ O contents) and electrodeposition type (potentiostatic or galvanostatic) on physical-chemical and corrosion characteristics of obtained films have been studied. Films are characterized by energy dispersive analysis (EDAX) and scanning electron microscopy (SEM). The corrosion tests are performed in 3% NaCl solution with optimal resulting values of -916.2 mV vs. saturated calomel electrode (SCE) for the corrosion potential and 13.4 µA·cm ^-2 for the corrosion current density. The calculated value for the corrosive attack protection efficiency is 67.7%.

Original language	English
Pages (from-to)	572-577
Number of pages	6
Journal	Indian Journal of Chemical Technology
Volume	25
Issue number	6
Publication status	Published - 1 Nov 2018
Externally published	Yes

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Keywords

Corrosion
Corrosion test
Electrodeposition
Ni-zn-p
Sulphate
Thin films

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

Cite this

Popescu, A. M., Soare, V., Burada, M., Mitrică, D., Constantin, I., Bădiliţă, V., ... Constantin, V. (2018). Electrochemical behaviour of ternary Ni-Zn-P thin films deposition on steel substrate. Indian Journal of Chemical Technology, 25(6), 572-577.

Electrochemical behaviour of ternary Ni-Zn-P thin films deposition on steel substrate. / Popescu, Ana Maria; Soare, Vasile; Burada, Marian; Mitrică, Dumitru; Constantin, Ionut; Bădiliţă, Viorel; Minculescu, Florin; Cotrut, Cosmin; Neacsu, Elena Ionela; Donath, Cristina; Constantin, Virgil.

In: Indian Journal of Chemical Technology, Vol. 25, No. 6, 01.11.2018, p. 572-577.

Research output: Contribution to journal › Article

Popescu, Ana Maria ; Soare, Vasile ; Burada, Marian ; Mitrică, Dumitru ; Constantin, Ionut ; Bădiliţă, Viorel ; Minculescu, Florin ; Cotrut, Cosmin ; Neacsu, Elena Ionela ; Donath, Cristina ; Constantin, Virgil. / Electrochemical behaviour of ternary Ni-Zn-P thin films deposition on steel substrate. In: Indian Journal of Chemical Technology. 2018 ; Vol. 25, No. 6. pp. 572-577.

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AU - Bădiliţă, Viorel

AU - Minculescu, Florin

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