大气悬浮颗粒物对钢铁材料环境腐蚀性影响程度的数学分析

Kelvin probe technique was adopted in this paper to continuously monitor the SKP potential of iron and steel materials in smog environment. The monitoring results show that the deposition of atmospheric particles can promote the atmospheric corrosion of the sample surface. The contribution rate of relative humidity, suspended particles and other factors to promote the iron and steel corrosion was studied by variance analysis. The analysis results show that the corrosion tendency of steel in atmospheric environment containing suspended particles increase at least 33.62%, under the same relative humidity. As long as these particles have been deposited on the steel surface, the risk of acceleratting corrosion always exists.