文献类型：会议论文

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];Yan, Cao[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

会议论文集：International Conference on Materials Science and Engineering Applications

会议日期：JAN 15-16, 2011

会议地点：Xian, PEOPLES R CHINA

语种：英文

外文关键词：Electroless Ni-P-SiO(2) Composite Coating; Dewpoint Corrosion; Corrosion Resistance

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-SiO(2) composite coatings were prepared on AISI 1020 carbon steel. And the corrosion behaviors of Ni-P-SiO(2), 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-SiO(2) coating was best, followed by Ni-P coating and carbon steel was worst.