Wang Zhigao, Wang Mei, Jiang Jie, Lan Xinsheng, Wang Fangqiang, Geng Zhi, Tian Qianqian
State Grid Sichuan Electric Power Research Institute, Chengdu 610041, China.
School of Mechanical Engineering, Sichuan University, Chengdu 610065, China.
Scanning. 2020 Feb 19;2020:9591516. doi: 10.1155/2020/9591516. eCollection 2020.
In order to effectively reduce and retard corrosion of the power transmission and transformation equipment in Chengdu power grid and to improve power supply reliability, Q235 carbon steel material which is the most widely used metal material in power grid was selected as the targeted research object in this article. Exposure experiments were performed in urban atmospheric environment of Chengdu city in the southwest region of China. The corrosion behavior of Q235 carbon steel material was investigated at different seasons. The macro- and micromorphologies after corrosion were observed using a digital camera and scanning electron microscopy (SEM), respectively. Element distribution of the rust layer and the corrosion products was characterized by energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR); the corrosion mechanism was also briefly analyzed.
为有效减少和延缓成都电网输变电设备的腐蚀，提高供电可靠性，本文选取了电网中使用最为广泛的金属材料Q235碳钢作为研究对象。在中国西南地区成都市的城市大气环境中开展暴露试验。研究了Q235碳钢材料在不同季节的腐蚀行为。分别使用数码相机和扫描电子显微镜（SEM）观察了腐蚀后的宏观和微观形貌。通过能谱仪（EDS）、X射线衍射仪（XRD）和傅里叶变换红外光谱仪（FTIR）对锈层和腐蚀产物的元素分布进行了表征；并对腐蚀机理进行了简要分析。
