The effect of synthetic zinc corrosion products on corrosion of electrogalvanized steel. II. Zinc reactivity and galvanic coupling zinc/steel in presence of zinc corrosion products

被引：44
作者：
Yoo, J. D. [1 ]
Ogle, K. [1 ]
Volovitch, P. [1 ]
机构：
[1] Chim ParisTech, ENSCP, CNRS, UMR 7045, F-75231 Paris 05, France
来源：
CORROSION SCIENCE | 2014年 / 83卷
关键词：
Zinc; Steel; Oxygen reduction; Atmospheric corrosion; Polarization; REDEPOSITION PROCESSES; ATMOSPHERIC CORROSION; CARBONATE SOLUTIONS; AQUEOUS ALKALI; FILM FORMATION; CUT-EDGES; LAYER; PASSIVATION; ELECTROLYTE; DISSOLUTION;
D O I：
10.1016/j.corsci.2013.12.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The reactivity of zinc under synthetic zinc patinas and the galvanic coupling in steel/patina/Zn are studied. Zn-5(OH)(6)(CO3)(2) and Na2Zn3(CO3)(4).3H(2)O inhibit zinc anodic dissolution in NaCl, while Zn-5(OH)(8)Cl-2 H2O and Zn-4(OH)(6)SO4 nH(2)O do not. The galvanic current in steel/patina/NaCl/Zn is smaller as compared to steel/NaCl/Zn. The inhibiting effect decreases with time for Na2Zn3(CO3)(4).3H(2)O or Zn-4(OH)(6)SO4 nH(2)O due to the transformation into Zn(OH)(2). In NaHCO3, the polarity between zinc and steel can reverse. The effect of confinement on the cathodic current is stronger than the initial effect of patina which is explained by the instability of the patinas under rapid pH-increase. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：32 / 37
页数：6
相关论文
共 37 条
[1]   CORROSION AND POLARIZATION CHARACTERISTICS OF ZINC IN NEUTRAL-ACID MEDIA .1. PURE ZINC IN SOLUTIONS OF VARIOUS SODIUM-SALTS [J].
BAUGH, LM .
ELECTROCHIMICA ACTA, 1979, 24 (06) :657-667
[2]   Layered hydroxide salts: Synthesis, properties and potential applications [J].
Carbajal Arizaga, Gregorio Guadalupe ;
Satyanarayana, Kestur Gundappa ;
Wypych, Fernando .
SOLID STATE IONICS, 2007, 178 (15-18) :1143-1162
[3]   In situ spectroscopic ellipsometry during electrochemical treatment of zinc in alkaline carbonate electrolyte [J].
Chen, Ying ;
Erbe, Andreas .
SURFACE SCIENCE, 2013, 607 :39-46
[4]   ZINC OXIDATION AND REDEPOSITION PROCESSES IN AQUEOUS ALKALI AND CARBONATE SOLUTIONS .2. DISTINCTION BETWEEN DISSOLUTION AND OXIDE FILM FORMATION PROCESSES [J].
CONWAY, BE ;
KANNANGARA, DCW .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (04) :906-918
[5]  
de la Fuente D, 2007, CORROS SCI, V49, P1420, DOI 10.1016/j.corsci.2006.08.003
[6]   THE CATHODIC MASS-TRANSPORT PROCESS DURING ZINC CORROSION IN NEUTRAL AERATED SODIUM-SULFATE SOLUTIONS [J].
DESLOUIS, C ;
DUPRAT, M ;
TULETTOURNILLON, C .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 181 (1-2) :119-136
[7]  
Feitknecht W., 1959, CHEM IND, V36, P1102
[8]   ELECTROCHEMICAL IMPEDANCE IN A THIN SURFACE ELECTROLYTE LAYER - INFLUENCE OF THE POTENTIAL PROBE LOCATION [J].
FIAUD, C ;
KEDDAM, M ;
KADRI, A ;
TAKENOUTI, H .
ELECTROCHIMICA ACTA, 1987, 32 (03) :445-448
[9]   THE CORROSION BEHAVIOR OF THE ZINC MILD-STEEL GALVANIC CELL IN HOT SODIUM-BICARBONATE SOLUTION [J].
GLASS, GK ;
ASHWORTH, V .
CORROSION SCIENCE, 1985, 25 (11) :971-983
[10]   ROLE OF ANIONS IN CORROSION AND CORROSION-INHIBITION OF ZINC IN AQUEOUS SOLUTIONS [J].
GOUDA, VK ;
KHEDR, MGA ;
ELDIN, AMS .
CORROSION SCIENCE, 1967, 7 (04) :221-&
1234