【摘要】 研究表明，对普通灰铸铁加少量合金元素及变质剂，可使其耐海水腐蚀率提高４ 倍；这是由于在腐蚀过程中，铸铁表面形成了一层复合保护膜．对该膜的形成过程进行了探讨，发现了一些有意义的新现象．更多还原

【Abstract】 The addition of a few alloy elements and quality transformation materials to ordinary cast iron the ability of cast iron to resist sea water corrosion by four times because a layer of compound protection film have formed on the surface of cast iron during the corrosion process.更多还原