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- Title
碳钢在四川典型盐化工环境中的大气腐蚀行为.
- Authors
耿植; 罗明才; 王志高; 海潮; 田倩倩; 曾晓亮; 刘曦; 兰新生; 杜翠薇
- Abstract
In order to study the metal corrosion characteristics of Sichuan power transmission and transformation equipment in typical industrial environment, so as to provide theoretical guidance for differentiated anti-corrosion measures for transmission and transformation equipment, carbon steel was selected as the research object and aimed at Zigong, a typical salt chemical city in Sichuan Province. A one, year atmospheric corrosion test was carried out in rural environment and heavy industry polluted areas, respectively. Through macroscopic morphology observation, corrosion rate testing, scanning electron microscope (SEM), energy spectrum analysis (EDS), X-ray diffraction (XRD) and electrochemical testing, the atmospheric corrosion behavior of carbon steel in these two environments were comprehensively studied. The results show that the corrosion degree of carbon steel in Zigong area is relatively serious, and the atmospheric corrosion rate of heavy industry polluted environment is 32. 14 µm/a, even in the rural environment, it is seriously corroded, and the corrosion rate reaches 21. 92 µm/ a. The atmospheric corrosion behavior of carbon steel in the two environments is significantly different. In heavy industry polluted environment with higher chloride ion content, the surface of carbon steel is more likely to generate needle-like corrosion products, and the rust layer has poor protection and corrosion will further accelerate. In order to improve the corrosion protection effect of power transmission and transformation equipment in Zigong area, differentiated anti-corrosion measures can be adopted to appropriately increase the protection level in heavy industry polluted areas.
- Publication
Science Technology & Engineering, 2022, Vol 22, Issue 12, p4772
- ISSN
1671-1815
- Publication type
Article