ACCUMULATION OF TRIHALIDE IONS CAUSED BY CORROSION

被引：7

作者：

TSUKAUE, Y ^{[1
]}

KUDO, A ^{[1
]}

NAKAO, G ^{[1
]}

YAMASAKI, H ^{[1
]}

KIMURA, S ^{[1
]}

机构：

[1] BABCOCK HITACHI CO LTD,DIV DESIGN,KURE WORKS,KURE,HIROSHIMA,JAPAN

来源：

CORROSION | 1993年 / 49卷 / 03期

关键词：

EXPONENTIAL LAW; IMMERSION TESTING; STOCHASTIC MODEL TRIHALIDE IONS; TRIIODIDE IONS;

D O I：

10.5006/1.3316043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The accumulation of trihalide ions caused by corrosion has been kinetically and stochastically studied using types 304L (UNS S30403) and 316L (UNS S31603) stainless steels in an iodine solution, which is a halogen-type solution. Hourly changes of trihalide ion concentration and mass loss can be stated as e(G x t) where G is a kinetic parameter and t is time, respectively. The probability of pit initiation follows the exponential law (F = 1 - e(-lambda x t) where lambda is a pit generation rate (stochastic parameter). ft was deduced that this parameter is proportional to the kinetic parameter above. Experiments proved it to be valid regardless of temperature, triiodide ion concentration at time 0, and material.

引用

页码：220 / 234

页数：15

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