EFFECT OF PERIPHERAL VELOCITY ON THE CORROSION AND PASSIVATION OF IRON IN CHLORIDE CONTAINING MEDIA

被引:10
作者
DECASTRO, MAC [1 ]
WILDE, BE [1 ]
机构
[1] US STEEL CORP,RES LABS,MONROEVILLE,PA 15146
关键词
D O I
10.5006/0010-9312-35.12.560
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The anodic dissolution kinetics of iron in chloride containing solutions (LiCl) was studied as a function of peripheral velocity by using a rotating cylinder electrode. The passivation kinetics under rotating conditions can be described with a Mueller type equation derived for simultaneous overlapping dissolution mechanisms. The mechanism of passivation under rotating conditions involves changes in the diffusion layer thickness and the ease of diffusion of ions to and from the dissolving surface resulting in passivation by oxide film formation.
引用
收藏
页码:560 / 565
页数:6
相关论文
共 30 条
[1]  
BIRD RB, 1965, TRANSPORT PHENOMENA, P94
[2]  
BRENNERT S, 1937, J IRON STEEL I, V135, P101
[3]  
CASTRO M, UNPUBLISHED
[4]   ROLE OF DIFFUSION IN PHENOMENA OF PASSIVATION AND LOCALIZED CORROSION OF IRON IN ACID-MEDIUM [J].
EPELBOIN, I ;
GABRIELLI, C ;
KEDDAM, M .
CORROSION SCIENCE, 1975, 15 (03) :155-171
[5]   Isolation of the film responsible for the passivity of an iron anode in acid solution [J].
Evans, UR .
NATURE, 1930, 126 :130-131
[6]  
FLADE F, 1911, A PHYS CHEM, V76, P513
[7]   ON PASSIVITY OF IRON-CHROMIUM ALLOYS .3. EFFECT OF POTENTIAL [J].
FRANKENTHAL, RP .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1969, 116 (12) :1646-+
[8]  
GOHR H, 1957, Z ELEKTROCHEM, V62, P1291
[9]   THE INFLUENCE OF IODIDE IONS AND CARBON MONOXIDE ON THE ANODIC DISSOLUTION OF ACTIVE IRON [J].
HEUSLER, KE ;
CARTLEDGE, GH .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1961, 108 (08) :732-740
[10]   THE BREAKDOWN AND REPAIR OF OXIDE FILMS ON IRON [J].
HOAR, TP .
TRANSACTIONS OF THE FARADAY SOCIETY, 1949, 45 (07) :683-693