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首页> 外文会议>International Symposium on Eco-Materials Processing and Design >The Effect of Alloying Cu on Pitting Corrosion Resistance of Copper-bearing Ferritic Stainless Steel
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The Effect of Alloying Cu on Pitting Corrosion Resistance of Copper-bearing Ferritic Stainless Steel

机译：合金化Cu对耐铜铁素体不锈钢蚀腐蚀性的影响

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Copper is a well-known alloying element which is used to improve the resistance to general corrosion of stainless steels. Our previous experiments show that the increase of copper content can acquire the excellent antibacterial properties and can also increase the tendency to cold formability of the ferritic stainless steels. However, the effect of alloying Cu on the resistance to localized corrosion has not been clarified sufficiently. In order to understand the effect of copper on pitting corrosion resistance of the ferritic antibacterial stainless steel, the electrochemical experiments were carried out and the anodic polarization curves were performed in 3.5% NaCl solution for two kinds of steels. The results reveal that the ε-Cu phase in ferrite matrix diminishes pitting corrosion resistance of the antibacterial stainless steel in the chlorides medium. It is connected with the poor passive behavior of the ε-Cu phase inclusions.
机译：铜是一种公知的合金元件，用于改善不锈钢通用腐蚀的抗性。我们以前的实验表明，铜含量的增加可以获得优异的抗菌性能，并且还可以增加铁素体不锈钢的冷成形性的趋势。然而，合金化Cu对局部化腐蚀性的影响尚未充分阐明。为了了解铜对铁素体抗菌不锈钢的蚀腐蚀性的影响，进行了电化学实验，并在3.5％NaCl溶液中进行两种钢进行阳极偏振曲线。结果表明，铁氧体基质中的ε-Cu相减少了氯化物介质中抗菌不锈钢的蚀腐蚀性。它与ε-Cu相夹杂物的无源行为相连。

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