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研究带锈铸铁在含盐湿砂中的腐蚀和电化学行为，研究表明，在含盐湿砂中生成较厚砂锈层的带锈铸铁的腐蚀速度和电化学行为与铸铁相差很大，较厚砂锈层不仅不能阻碍腐蚀过程继续发展，而且加速腐蚀。
The corrosion and electrochemical behavior of rust-cast iron with salt-containing wet sand were studied. The results show that the corrosion rate and electrochemical behavior of rust-proof cast iron with thick sand rust layer in salt-wet sand are quite different from that of cast iron. Thick sand rust layer not only can not prevent the corrosion process continues to develop, but also accelerate corrosion.