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1、绪言亚硝酸钠是一种在钢件表面形成钝化膜从而抑制腐蚀的典型阳极型缓蚀剂,但人们对其防蚀特性至今还有很多不明之处.作者们过去曾采用Cr-Mo钢就亚硝酸盐类缓蚀剂浓度以及水中的溶解氧对防蚀效果的影响进行了一系列的试验也曾有人写过关于亚硝酸钠分解消耗的报告,弄清防蚀特性和分解行为之间的关系,对实际装置的防蚀性管理,是极为重要的.本研究从观察Cr-Mo钢在含有亚硝酸盐类缓蚀剂的中性溶液中的腐蚀状况以及分
1, Introduction Sodium nitrite is a typical anodic corrosion inhibitor that forms a passive film on the surface of steel to suppress corrosion, but so far there are still many uncertainties about its anti-corrosion properties. The authors used to use Cr- Mo Steel conducted a series of tests on the effects of nitrite corrosion inhibitor concentrations and dissolved oxygen in water on corrosion protection. There have also been reports of decomposition of sodium nitrite consumed to understand anti-corrosion properties and decomposition behavior Of the relationship between the corrosion prevention of the actual device management is extremely important.In this study from the observation of Cr-Mo corrosion in neutral solution containing nitrite corrosion inhibitor as well as points