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首页> 外文期刊>Journal of Korean Institute of Metal and Materials >Development of Sulfuric and Hydrochloric Acid Dew-Point Corrosion-Resistant Steels: 1. Effect of Alloying Elements on the Corrosion Resistance of Low-Alloy Steels
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Development of Sulfuric and Hydrochloric Acid Dew-Point Corrosion-Resistant Steels: 1. Effect of Alloying Elements on the Corrosion Resistance of Low-Alloy Steels

机译：耐硫酸和盐酸露点腐蚀钢的发展：1.合金元素对低合金钢耐腐蚀性的影响

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摘要

Carbon steels requires the corrosion resistance against sulfuric and hydrochloric acid dew-point corrosion at the low temperature section of FGD systems. The design of the corrosion-resistant steels was focused on a small number of conventional alloying elements such as Cu, Sb, W, Mo, Cr, Mn, Nb, Al, Co, P. The corrosion rate decreased in the following order: P > Blank > Cr, Co, Al, Nb, Mn, W, Mo > Cu. The Cu-containing steel presents the lowest corrosion rates due to the accumulated Cu compound, Cu and Cu oxides, on the surface. The corrosion rate decreased in the following order: Cu-Cr, Cu-Mo > Cu > Cu-W > Cu-Sb. W, Mo and Cr is not effective with Cu content. Addition of Sb not only created a protective Sb oxides film on the steel surface, but also accelerated the reaction of copper deposition through the adsorbed complex salt, Cu-Sb species.
机译：碳钢要求在烟气脱硫系统的低温段具有抗硫酸和盐酸露点腐蚀的性能。耐腐蚀钢的设计集中于少数常规合金元素，例如Cu，Sb，W，Mo，Cr，Mn，Nb，Al，Co，P。腐蚀速率按以下顺序降低：P >空白> Cr，Co，Al，Nb，Mn，W，Mo> Cu。由于表面上积累了铜化合物，铜和铜氧化物，因此含铜钢的腐蚀速率最低。腐蚀速率按以下顺序降低：Cu-Cr，Cu-Mo> Cu> Cu-W> Cu-Sb。 W，Mo和Cr对Cu含量无效。 Sb的添加不仅在钢表面形成了一层保护性的Sb氧化物膜，而且还通过吸附的复合盐Cu-Sb物种促进了铜沉积的反应。

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