镀锌层破损输电杆塔用镀锌钢在干湿交替作用下的腐蚀行为

中国腐蚀与防护学报

2013, Vol. 33

Issue (5): 395-399

研究报告

本期目录 | 过刊浏览

镀锌层破损输电杆塔用镀锌钢在干湿交替作用下的腐蚀行为

原徐杰^1,2, 张俊喜¹, 张世明¹, 谈天¹

1. 上海电力学院上海高校电厂腐蚀防护与应用电化学重点实验室上海 200090;
2. 上海中挪海事技术有限公司上海 201417

Corrosion Behavior of Galvanized Steel for Power Transmission Tower with Breakage of Zinc #br#Coating in Polluted Environment

YUAN Xujie^1,2, ZHANG Junxi¹, ZHANG Shiming¹, TAN Tian¹

1. Key Laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;
2. Shanghai CCS-DNV Technology Institute, Shanghai 201417, China

全文: PDF(1030 KB)

摘要: 采用自制大气腐蚀模拟试实验装置，并结合电化学阻抗及开路电位测试技术，研究了在干湿交替作用下，不同破损面积的输电杆塔用镀锌钢在NaCl和NaHSO₃腐蚀介质共同污染下的腐蚀行为。结果表明，随着破损面积以及暴露时间的增加，电极的开路电位逐渐正移，同时电极的腐蚀速率也会随着破损面积的增加而增加，不同破损面积的样品的腐蚀速率在初期随暴露时间的增加而增加，后期逐渐减小。

关键词 ：镀锌钢, 破损, 干湿交替, 电化学阻抗谱

Abstract：The corrosion behaviors of galvanized steel for power transmission tower with local breakage of zinc coating were investigated by using EIS and open circuit potential (OCP) measurements in NaCl and NaHSO₃ polluted atmosphere. The results showed that the OCP of the electrode shifted to positive direction gradually as the broken area and exposure time increased. With the increase of broken area of zinc coating, the corrosion rate of galvanized steel increased gradually and more and more close to that of Fe.

Key words： galvanized steel breakage cyclic wet/dry EIS

ZTFLH:

TG172.3

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引用本文:

原徐杰, 张俊喜, 张世明, 谈天. 镀锌层破损输电杆塔用镀锌钢在干湿交替作用下的腐蚀行为[J]. 中国腐蚀与防护学报, 2013, 33(5): 395-399.
YUAN Xujie, ZHANG Junxi, ZHANG Shiming, TAN Tian. Corrosion Behavior of Galvanized Steel for Power Transmission Tower with Breakage of Zinc #br#Coating in Polluted Environment. Journal of Chinese Society for Corrosion and protection, 2013, 33(5): 395-399.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2013/V33/I5/395

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