安徽省内电网设备常用Q235和40Cr钢大气腐蚀特性及其规律

李乐民, 张洁, 卞亚飞, 缪春辉, 陈国宏, 汤文明

Atmospheric Corrosion Characteristics and Regularity of the Q235, 40Cr Steels Commonly-used in Power Grid Equipment in Anhui Province

LI Lemin, ZHANG Jie, BIAN Yafei, MIAO Chunhui, CHEN Guohong, TANG Wenming

表4 Q235和40Cr钢试样大气腐蚀1和3 a的灰色关联分析结果

Table 4 Grey relational analyses of the Q235 and 40Cr steel samples after exposure for 1 a and 3 a

Environmental factor / i Q235 steel 40Cr steel 1 a 3 a 1 a 3 a ri Rank ri Rank ri Rank ri Rank Average temperature / ℃ 0.901 2 0.967 1 0.913 2 0.965 2 Average humidity / % 0.608 4 0.486 4 0.608 4 0.486 4 NO2 / µg·m-3 0.967 1 0.785 3 0.965 1 0.785 3 SO2 / µg·m-3 0.850 3 0.951 2 0.861 3 0.966 1 O3 / µg·m-3 0.366 5 0.356 5 0.367 5 0.357 5