Coupling of superduplex stainless steel and cast nickel-aluminium bronze in sea water

被引：5

作者：

Francis, R ^{[1
]}

机构：

[1] Weir Mat & Foundries, Pk Works, Manchester M40 2BA, Lancs, England

来源：

BRITISH CORROSION JOURNAL | 1999年 / 34卷 / 02期

关键词：

D O I：

10.1179/000705999101500789

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tests have been performed at about 25 degrees C in both natural and chlorinated sea waters on couples of nickel-alminium bronze (NAB) and Zeron 100 (Z100) superduplex stainless steel. Two NAB/Z100 area ratios (1 : 1 and 1 : 10) were used in exposures of 60 days. The results in natural sea water showed severe localised corrosion of NAB both in the crevices and on open surfaces at both area ratios. In chlorinated sea water there was no corrosion at a 1 : 1 area ratio. The attack is explained in terms of the different cathodic reactions occurring in natural and chlorinated sea waters, and the metallurgical structure of: NAB. Service experiences with couples of NAB and superduplex stainless steel are described and recommendations are given for the avoidance of problems.

引用

页码：139 / 144

页数：6

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