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研究了３ 种不锈钢在衣康酸／ 氯化钠水溶液中的腐蚀和电化学特性并探讨了介质组成和温度的影响．结果表明，在一定范围内，随衣康酸浓度、氯化钠浓度和温度的提高，不锈钢的腐蚀速率、致钝电流密度和维钝电流密度也有所增大，不锈钢的点蚀电位与衣康酸介质中 Ｃｌ－ 浓度的对数之间存在线性关系；在不同组成的衣康酸／ 氯化钠介质中， Ｒ１ 双相不锈钢的耐全面腐蚀和耐点蚀性显著优于３１６ Ｌ 和１ Ｃｒ１８ Ｎｉ９ Ｔｉ 奥氏体不锈钢
The corrosion and electrochemical properties of three kinds of stainless steel in itaconic acid / sodium chloride aqueous solution were studied and the effects of the composition and temperature of the medium were discussed. The results showed that the corrosion rate of stainless steel, the density of blunted current and the current density of blunt current also increased with the increase of itaconic acid concentration, sodium chloride concentration and temperature within a certain range. The pitting corrosion potential of stainless steel increased with the increase of There is a linear relationship between the logarithm of Cl- concentration in acid medium. The resistance to comprehensive corrosion and pitting corrosion of R1 duplex stainless steel is significantly better than that of 316L and 1Cr18 in different compositions of itaconic acid / sodium chloride Ni9 Ti austenitic stainless steel