文献类型：期刊文献

英文题名：Electroless Ni-P-SiO2 composite coatings and their corrosion behaviors in simulated furnace flue gas

作者：Hou, Feng[1]; Xu, Hong[1]; Dai, Yulin[1]; Yao, Zhiyan[1]; Yane, Cao[1]

机构：[1] State Key Laboratory of Chemical Engineering, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2011

卷号：160-162

起止页码：1464

外文期刊名：Advanced Materials Research

收录：EI(收录号：20110213566785)

语种：英文

外文关键词：Nickel coatings - Steel corrosion - Composite coatings - Furnaces - Sulfuric acid - Corrosive effects - Corrosion resistant coatings - Corrosion resistance - Carbon steel - Flue gases

摘要：Over the last ten years, sulfuric acid dewpoint corrosion has become a more important concern in refinery furnaces since sulfur levels in fuels have increased. Electroless nickel phosphorous coating is one of the most widely used industrial coatings owing to its good corrosion resistance in many highly corrosive environments. In this work, electroless Ni-P-SiO2 composite coatings were prepared on AISI 1020 carbon steel. And the corrosion behaviors of Ni-P-SiO2, Ni-P coatings and carbon steel substrate were evaluated by immersion, electrochemical tests in 5%wt sulfuric acid solution, and dewpoint corrosion tests in simulated furnace flue gas. The experimental results indicated that corrosion resistance properties of Ni-P-SiO2 coating was best, followed by Ni-P coating and carbon steel was worst.