CORROSION BEHAVIOR OF CARBON STEEL IN SEAWATER AND SEAWATER REVERSE OSMOSIS PERMEATE

WANG Hongyi1; ZHOU Donghui1; LIANG Qinqin2; WU Shanhong1; XIAO Li1; HU Jiayuan2 1.Zhejiang Zheneng Yueqing Power Generation Co.

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CORROSION BEHAVIOR OF CARBON STEEL IN SEAWATER AND SEAWATER REVERSE OSMOSIS PERMEATE

更新时间：2025-09-28

- CORROSION BEHAVIOR OF CARBON STEEL IN SEAWATER AND SEAWATER REVERSE OSMOSIS PERMEATE
- Thermal Power Generation Vol. 41, Issue 7, Pages: 66-69(2012)
- 作者机构：
  
  1. 浙江浙能乐清发电有限公司
  2. 武汉大学动力与机械学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG172
- Published：2012
- 稿件说明：
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WANG Hongyi1, ZHOU Donghui1, LIANG Qinqin2, et al. CORROSION BEHAVIOR OF CARBON STEEL IN SEAWATER AND SEAWATER REVERSE OSMOSIS PERMEATE[J]. Thermal power generation, 2012, 41(7): 66-69.
DOI：

WANG Hongyi1, ZHOU Donghui1, LIANG Qinqin2, et al. CORROSION BEHAVIOR OF CARBON STEEL IN SEAWATER AND SEAWATER REVERSE OSMOSIS PERMEATE[J]. Thermal power generation, 2012, 41(7): 66-69. DOI：

摘要

采用扫描电镜(SEM)、红外光谱(IR)及X射线衍射(XRD)对碳钢在海水及海水淡化一级反渗透(RO)产水中的锈层进行分析

并结合交流阻抗测量

研究了其腐蚀行为。结果表明

碳钢在一级RO产水中的腐蚀速度远大于在海水中的腐蚀速度

原因是两者形成的锈层存在明显差异:海水中碳钢锈层含γ-FeOOH、α-FeOOH、Fe3O4及少量β-FeOOH

γ-FeOOH为主要成分

锈层对金属具有保护作用;在一级RO产水中的碳钢锈层含γ-FeOOH、Fe3O4以及少量的α-FeOOH

Fe3O4为主要成分在金属表面大量堆积对金属无保护作用。

Abstract

In order to investigate the corrosion behavior of carbon steel in seawater and seawater reverse osmosis permeate(RO permeate)

the corrosion products were analyzed by the Scanning Electron Microscope(SEM) and X-Ray Diffraction(XRD)

combined with the AC impedance measurement for the corrosion system.Results show that

the corrosion rate of carbon steel in RO permeate is much higher than that in seawater because of the significant difference between the rust layers formed under each condition.Rust layer formed in seawater consists of γ-FeOOH(the main composition)

α-FeOOH

Fe3O4 and a little β-FeOOH

and has a protective effect on metal.However

the one formed in RO permeate is composed of γ-FeOOH

Fe3O4(significant proportion) and a little α-FeOOH

deposites on the surface of metal and causes the severe corrosion.

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