CORROSION PRETREATMENTS FOR COPPER-ZINC ALLOYS

被引：19

作者：

POLING, GW ^{[1
]}

NOTOYA, T ^{[1
]}

机构：

[1] HOKKAIDO UNIV,SAPPORO,HOKKAIDO 060,JAPAN

来源：

CORROSION | 1979年 / 35卷 / 01期

关键词：

D O I：

10.5006/0010-9312-35.1.33

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Combinations of four different types of zinc complexing agents with benzotriazole (BTA), an efficient complexant and corrosion inhibitor for copper, were tested as pretreatment inhibitors for 70/30 and 60/40 brasses in aerated 3% NaCl solutions. Alkyl dithiocarbonates, of C//6 to C//8 chain length, proved superior to: 2, 5-dimercaptothiadiazole (DMTDA), sodium-diethyldithiocarbamate (DDC), and sodium diethyldithiophosphate (DEDTP), in combination with BTA under a variety of test conditions. Scanning electron micrographs showing surface topographies of test specimens with and without these inhibitor pretreatments are presented. Galvanostatic polarization curves are shown to help evaluate the inhibiting action of each inhibitor combination.

引用

页码：33 / 38

页数：6

共 9 条

[1]

BHARUCHA NR, 1966, A1617 BRIT NON FERR

[2] STRUCTURE-CORROSION INHIBITION STUDIES OF POLYFUNCTIONAL METAL CHELATING COMPOUNDS [J].