电网碳钢、镀锌钢大气腐蚀等级图绘制研究

郝文魁, 陈新, 徐玲铃, 韩钰, 陈云, 黄路遥, 祝志祥, 杨丙坤, 王晓芳, 张强

Drawing of Atmospheric Corrosion Map of Carbon Steel and Galvanized Steel for Power Grid

HAO Wenkui, CHEN Xin, XU Lingling, HAN Yu, CHEN Yun, HUANG Luyao, ZHU Zhixiang, YANG Bingkun, WANG Xiaofang, ZHANG Qiang

表5 碳钢、镀锌钢大气腐蚀等级准确率预测结果

Table 5 Statistics of corrosion categories of carbon steel and galvanized steel prediction results by cross validation

Material Category p=1 p=2 p=3 p=4 difference Number Proportion Number Proportion Number Proportion Number Proportion Carbon steel Consistent category 571 81.6% 597 85.3% 584 83.4% 572 81.7% One category difference 95 13.6% 77 11.0% 89 12.7% 97 13.9% Two categories difference 34 4.8% 26 3.7% 27 3.9% 31 4.4% Galvanized steel Consistent category 581 83.0% 601 85.9% 585 83.6% 573 81.9% One category difference 91 13.0% 75 10.7% 86 12.3% 94 13.4% Two categories difference 28 4.0% 24 3.4% 29 4.1% 33 4.7%