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
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
}
TY - JOUR
T1 - Electrochemical behaviour of ternary Ni-Zn-P thin films deposition on steel substrate
AU - Popescu, Ana Maria
AU - Soare, Vasile
AU - Burada, Marian
AU - Mitrică, Dumitru
AU - Constantin, Ionut
AU - Bădiliţă, Viorel
AU - Minculescu, Florin
AU - Cotrut, Cosmin
AU - Neacsu, Elena Ionela
AU - Donath, Cristina
AU - Constantin, Virgil
PY - 2018/11/1
Y1 - 2018/11/1
N2 - 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%.
AB - 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%.
KW - Corrosion
KW - Corrosion test
KW - Electrodeposition
KW - Ni-zn-p
KW - Sulphate
KW - Thin films
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UR - http://www.scopus.com/inward/citedby.url?scp=85064134768&partnerID=8YFLogxK
M3 - Article
VL - 25
SP - 572
EP - 577
JO - Indian Journal of Chemical Technology
JF - Indian Journal of Chemical Technology
SN - 0971-457X
IS - 6
ER -