EVALUATION OF CORROSION-INHIBITORS FOR COMPONENT COOLING WATER-SYSTEMS

被引：47

作者：

ALEXANDER, DB

MOCCARI, AA

机构：

[1] Carolina Power and Light Co, New Hill, NC

来源：

CORROSION | 1993年 / 49卷 / 11期

关键词：

CARBON STEEL; CHROMATE; COMPONENT COOLING WATER; COPPER; CREVICE CORROSION; INHIBITORS; MOLYBDATE; NITRITE; NITROGEN; OXIDIZER; POTENTIODYNAMIC; CHLORIDE; SODIUM CHLORIDE; PITTING SCAN; POLARIZATION CURVE; TOLYLTRIAZOLE;

D O I：

10.5006/1.3316018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical techniques were used to study the inhibition effects of molybdate (MoO42-), MoO42- + nitrite (NO2-), MoO42- + tolyltriazole (TTA, CHCHNH), and MoO42- + NO2- + TTA on the general and pitting/crevice corrosion of carbon (C) steel and some copper (Cu) alloys common to component cooling water systems (CCWS) exposed to deionized water open to ambient air or purged with nitrogen (N2). Some tests were performed in deionized water faulted with chloride (Cl-) at concentrations of 150 ppb or 1.5 ppm and with 1.5 ppm Cl-plus 1. 5 ppm sulfate (SO42-). Results were compared with the inhibition effects of 200 ppm chromate (CrO42-).

引用

页码：921 / 928

页数：8