按照现有的ISO 9223大气环境腐蚀性分类分级标准,在进行实际腐蚀数据应用时对于大气环境和腐蚀等级之间关系的判别过程中,部分腐蚀等级分类具有不确定性。针对上述问题,提出了一种新的大气环境与碳钢腐蚀等级的量化关系挖掘方法,并进行实际腐蚀数据分析。结果表明,挖掘出的量化关系能够比ISO9223标准更精确的以概率的方式反映大气环境与碳钢腐蚀等级之间的相关性。因此,该方法能够促进大气环境腐蚀性分类分级工作的进一步研究。 According to the current ISO 9223 Corrosive Classification Criteria for Atmospheric Environment, part of the classification of corrosion grades is uncertain in the process of discriminating the relationship between atmospheric environment and corrosion level when applying actual corrosion data. In view of the above problems, a new method for quantifying the relationship between atmospheric environment and corrosion level of carbon steel is proposed and the actual corrosion data are analyzed. The results show that the quantified relationship can be more accurate than the ISO9223 standard to reflect the correlation between the atmospheric environment and the corrosion level of carbon steel by probability. Therefore, this method can further study the classification and classification of the corrosive atmosphere.