一般大气环境下锈蚀结构钢表面特征与随机模型

王友德,徐善华,李晗,张海江

Surface Characteristics and Stochastic Model of Corroded Structural Steel Under General Atmospheric Environment

Youde WANG,Shanhua XU,Han LI,Haijiang ZHANG

表1 试件腐蚀程度参数

Table 1 Corrosion degree parameters of steel plates

Corrosion condition Sample No. Corrosion time T0 / mm Tmax / mm γ / % Δte / μm Accelerated corrosion A1 40 d 7.2 7.20 2.76 199 A2 80 d 7.2 7.20 4.26 307 A3 120 d 7.2 7.14 6.04 435 A4 160 d 7.2 7.06 8.72 628 A5 240 d 7.2 7.03 9.07 653 A6 320 d 7.2 6.82 12.56 904 Natural corrosion HTF 8 a 9.0 7.98 21.18 1906 HBF 8 a 9.0 7.93 21.85 1966 HW 8 a 6.5 5.28 29.92 1944 STF 8 a 9.0 7.84 21.97 1977 SBF 8 a 9.0 7.80 22.64 2037 SW 8 a 6.5 5.27 32.99 2144 VTF 8 a 8.0 7.36 16.94 1355 VBF 8 a 8.0 7.25 19.21 1537 VW 8 a 6.0 5.42 19.73 1184