Q690高强钢对接焊缝加速腐蚀试验研究

魏欢欢, 雷天奇, 郑东东, 辛振科

Corrosion Characteristics of Butt Welds of Q690 High Strength Steel in Laboratory Test as an Enviormental Simulation of Ocean Splash Zone

WEI Huanhuan, LEI Tianqi, ZHENG Dongdong, XIN Zhenke

表1 质量损失率计算结果

Table 1 Calculated data of mass loss rates of various specimens

Corrosion time / d Specimen code m0 / g m1 / g m0-m1/ g ηs% ηs average value / % 20 CT20-1 1309.58 1294.52 15.06 1.15 1.80 CT20-2 1324.79 1292.43 32.36 2.44 CT20-3 1321.21 1297.76 23.45 1.77 CT20-4 1318.81 1294.70 24.11 1.83 40 CT40-1 1313.18 1271.02 42.16 3.21 3.62 CT40-2 1314.17 1267.16 47.01 3.58 CT40-3 1321.26 1274.96 46.30 3.50 CT40-4 1323.57 1268.41 55.16 4.17 60 CT60-1 1310.37 1244.03 66.34 5.06 5.48 CT60-2 1324.55 1243.60 80.95 6.11 CT60-3 1321.34 1248.06 73.28 5.55 CT60-4 1313.53 1245.54 67.99 5.18 80 CT80-1 1311.02 1229.38 81.63 6.23 6.81 CT80-2 1320.49 1229.32 91.17 6.90 CT80-3 1320.25 1227.31 92.94 7.04 CT80-4 1319.60 1226.32 93.28 7.07 100 CT100-1 1312.55 1209.86 102.69 7.82 8.46 CT100-2 1325.45 1207.46 117.99 8.90 CT100-3 1318.99 1210.32 108.67 8.24 CT100-4 1323.10 1205.46 117.64 8.89