文章基本信息

标题：Protection of SAE 213 T-22 Boiler Steel Tube Material with Various Power Coatings using HVOF Spray Technique
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作者：B. P. Garg, Navdeep Kumar
期刊名称：Journal of Environmental Nanotechnology
印刷版ISSN：2279-0748
电子版ISSN：2319-5541
出版年度：2013
期号：3923
页码：30-36
出版社：Institute for Environmental Nanotechnology
摘要：Corrosion is an unintentional gradual degradation of metal that occurs because of chemical or electrochemical attach. The corrosive nature of the gaseous environment at high temperature may cause rapid material degradation and result in premature failure of components. Boiler tubes in power plant are subjected to a wide variety of failure due to high temperature corrosion fatigue. For the reduction of corrosion either a material of required mechanical properties is used, which is impossible for a single material to have all these properties or provide the coating to existing material with surface coating methods, which improves the existing properties in economical way and reduce the cost of replacement. In this paper an attempt has been made by conducting the experimental work on SAE213 T-22 boiler steel tubes with different coating powders having composition of WC-10% CO-4% Cr and WC-12% Cr by adopting the High Velocity Oxy Fuel (HVOF) thermal spray technique to protect the boiler tubes from hot corrosion in gaseous environment and do the various calculations to made the comparison between uncoated and coated tube materials, by creating the artificial environment in the lab. Keywords : Boiler steel tube, Hot corrosion, Surface coatings, Thermal spraying,