复合数
腐蚀
材料科学
碳钢
扫描电子显微镜
硅酸钠
缓蚀剂
冶金
碳纤维
废水
复合材料
废物管理
工程类
作者
Jingjing Xiang,Lu Zhang,Qiaoyun Zhu,Likun Li,Yanjun Huang,Yi Wang,Guangsen Song,Lei Zhang
摘要
Abstract The circular saw blade, which is mainly composed of carbon steel, is used to cut the stone. However, the carbon steel is easily corroded in stone processing wastewater, shortening its lifespan. In this study, a new composite inhibitor of sodium nitrite, sodium molybdate, sodium silicate, sodium tungstate, and sodium citrate was investigated firstly, and then, its inhibition efficiency for carbon steel in stone processing wastewater was explored using electrochemical measurements and weight loss measurements. The results showed that the composite inhibitor as a mixed‐type inhibitor displayed good inhibitory performance. Surface analysis including scanning electron microscope, atomic force microscope, X‐ray photoelectron spectroscopy analysis, and contact angle test further revealed the form of protection of the steel surface by composite corrosion inhibitors. The prepared composite inhibitor exhibited excellent corrosion resistance for carbon steel in stone processing wastewater, and it is believed that the composite inhibitor has certain application potential in industries.
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