A STUDY OF THE DE-ALLOYING OF 70CU-30NI COMMERCIAL ALLOY IN SULFIDE POLLUTED AND UNPOLLUTED SEA-WATER

被引：24

作者：

BECCARIA, AM

POGGI, G

TRAVERSO, P

GHIAZZA, M

机构：

[1] Istituto per la Corrosione Marina dei Metalli, 16149 Genova, Via Scarsellini

来源：

CORROSION SCIENCE | 1991年 / 32卷 / 11期

关键词：

D O I：

10.1016/0010-938X(91)90137-E

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The behaviour of 70Cu-30Ni commercial alloy in quiescent sulphide polluted and unpolluted sea water at 25-degrees-C was examined by free corrosion and electrochemical tests. In aerated sea water the presence of sulphides enhances the average corrosion rate in a range of concentrations (0-10 ppm) while promoting preferential copper dissolution. In de-aerated sea water, alloy corrosion behaviour is strictly linked to sulphide concentration. In low polluted sea water, the mean corrosion rate of the alloy increases and slightly selective copper dissolution takes place. In highly polluted sea water, the corrosion rate decreases while slightly selective nickel dissolution takes place.

引用

页码：1263 / 1275

页数：13

共 26 条

[1] CORROSION OF CONDENSER TUBE ALLOYS IN SULFIDE CONTAMINATED BRINE [J].