模拟大气环境加速腐蚀试验的研究

Study on Accelerated Corrosion Test of Simulating Atmospheric Environments

以A3钢、锌为试验样,研究它们在盐水喷雾/二氧化硫复合循环加速腐蚀试验和北京、武汉、广州三地区大气环境暴露试验腐蚀动力学规律及户内外相关性,结果表明:盐水喷雾(水溶液中NaCl的质量百分数为3.5%)/二氧化硫气氛(SO2的质量分数为667×10-6)复合循环加速腐蚀试验可以一定程度地模拟此三地区大气环境。

By means of salt-spray and sulfur dioxide synergistic accelerated corrosion test, A3 steel and zinc as testing materials,relationship of corrosion behavior between accelerated test and atmospheric environments was studied. It turned out that 3.5% NaCl salt-spray/667 × 10^-6 SO2 gas synergistic test, to some extent, could simulate Beijing, Wuhan, Guangzhou atmospheric environments.