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

被引：0

作者：

Popescu, Ana-Maria ^{[1
]}

Soare, Vasile ^{[2
]}

Burada, Marian ^{[2
]}

Mitrica, Dumitru ^{[2
]}

Constantin, Ionut ^{[2
]}

Badilita, Viorel ^{[2
]}

Minculescu, Florin ^{[3
]}

Cotrut, Cosmin ^{[3
]}

Neacsu, Elena Ionela ^{[1
]}

Donath, Cristina ^{[1
]}

Constantin, Virgil ^{[1
]}

机构：

[1] Romanian Acad, Ilie Murgulescu Inst Phys Chem, Splaiul Independentei 202, Bucharest 060021, Romania

[2] Inst Nonferrous & Rare Met IMNR, Pantelimon B Dul Biruintei 102, Pantelimon 077145, Jud Ilfov, Romania

[3] Univ POLITEHN Bucharest BIOMAT, Splaiul Independentei 313, Bucharest 060032, Romania

来源：

INDIAN JOURNAL OF CHEMICAL TECHNOLOGY | 2018年 / 25卷 / 06期

关键词：

Corrosion; Thin films; Ni-Zn-P; Electrodeposition; Sulphate; Corrosion test; ALKANETHIOL MONOLAYERS; CORROSION-RESISTANCE; ALLOY COATINGS; ELECTRODEPOSITION; NICKEL; IRON;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Ternary Ni-Zn-P alloy thin films with a thickness of 15-20 mu m 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 ZnSO4 center dot 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 mu A.cm(-2) for the corrosion current density. The calculated value for the corrosive attack protection efficiency is 67.7%.

引用

页码：572 / 577

页数：6

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