Synergistic inhibition in low chloride media

被引:42
作者
Gunasekaran, G
Palanisamy, N
Rao, BVA
Muralidharan, VS
机构
[1] CENT ELECTROCHEM RES INST,KARAIKKUDI,TAMIL NADU,INDIA
[2] REG ENGN COLL,DEPT CHEM,WARANGAL,ANDHRA PRADESH,INDIA
关键词
synergistic inhibition; 2 carboxy ethyl phosphonic acid; XRD; FT-IR; ESCA; uv-luminescence and uv-diffused reflectance spectra;
D O I
10.1016/S0013-4686(96)00366-0
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Electrochemical and weight change methods were used to study the synergistic inhibition offered by Zn2+ ions and 2 carboxyethyl phosphonic acid (2CEPA) to the corrosion of mild steel in 60 ppm chloride solutions. The surface film was found to contain Zn(OH)(2) along with iron phosphonate complex. The diffusion of iron, phosphonate complex and H+ ions through this film determines the dissolution rate of iron. (C) 1997 Published by Elsevier Science Ltd.
引用
收藏
页码:1427 / 1434
页数:8
相关论文
共 17 条
[1]   INHIBITION MECHANISM OF MEDIUM-SIZED POLYMETHYLENEIMINE [J].
ARAMAKI, K ;
HACKERMAN, N .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1969, 116 (05) :568-+
[2]   INFLUENCE OF SOME ORGANIC-COMPOUNDS ON THE CORROSION MECHANISM OF CARBON-STEEL (XC38) IN 3-PERCENT NACL .1. DODECYL SODIUM PHOSPHONATE (C10H21PO3NA2) AND N-UNDECYLIMIDAZOLE (C14H26N2) SURFACTANTS [J].
DABOSI, F ;
DERBALI, Y ;
ETMAN, M ;
SRHIRI, A ;
DESAVIGNAC, A .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 1991, 21 (03) :255-260
[3]  
FERREDAY D, 1993, BRIT CORROS J, V28, P185
[4]   EFFECTS OF ANIONS ON CORROSION INHIBITION BY ORGANIC COMPOUNDS [J].
HACKERMAN, N ;
SNAVELY, ES ;
PAYNE, JS .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1966, 113 (07) :677-+
[5]  
JANG JL, 1993, CORROSION NACE, V49, P266
[6]  
JAYALAKSHMI M, 1994, CORROS REV, V12, P305
[7]  
KALMAN E, 1994, J ELECTROCHEM SOC, V14, P3357
[8]  
KARMAN FH, 1991, Z NATURFORSCH, V469, P183
[9]  
Kuznetsov Yu.I., 1992, Zashchita Metallov, V28, P249
[10]  
Mor E. D., 1976, British Corrosion Journal, V11, P199, DOI 10.1179/000705976798319711