CORROSION IN SEAWATER PUMPS AND ITS PREVENTION.

被引:0
|
作者
Kitashima, Nobumitsu [1 ]
Ichikawa, Katsuhiro [1 ]
Kinoshita, Kazuo [1 ]
Miyasaka, Matsuho [1 ]
机构
[1] Ebara Research Co, Fujisawa, Jpn, Ebara Research Co, Fujisawa, Jpn
来源
Boshoku gijutsu | 1986年 / 35卷 / 11期
关键词
CORROSION - Seawater - CORROSION PROTECTION - STAINLESS STEEL - Corrosion;
D O I
10.3323/jcorr1974.35.11_633
中图分类号
学科分类号
摘要
Recently, higher grade materials have been used for seawater pumps. However, it is desirable that more economical materials, e. g. , cast iron, carbon steel, and type 316 stainless steel, are properly used for their services. This paper proposes the practical protection methods from seawater corrosion, i. e. , (a) differential aeration cell corrosion (caused by the flow rate difference), (b) galvanic corrosion (caused by the use of two different materials), (c) crevice corrosion and others, which frequently occur in seawater pumps, and describes the applicability of these measures based on the actual application of seawater pumps.
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页码:633 / 641
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