TY - JOUR A2 - Deflorian, Flavio AU - Mishra, N. K. AU - Rai, A. K. AU - Mishra, S. B. AU - Kumar, R. PY - 2014 DA - 2014/05/06 TI - Hot Corrosion Behaviour of Detonation Gun Sprayed Stellite-6 and Stellite-21 Coating on Boiler Steel SAE 431 at 900°C SP - 146391 VL - 2014 AB - Hot corrosion is the serious problem in gas turbines, superheaters, and economizers of coal-fired boilers. It occurs due to the usage of wide range of fuels such as coal, oil, and so on at the elevated temperatures. Protective coatings on boiler steels are used under such environments. In the present investigation, Stellite-6 and Stellite-21 coatings have been deposited on boiler steel SAE 431 by detonation gun method. The hot corrosion performance of Stellite-6 and Stellite-21 coated as well as uncoated SAE 431 steel has been evaluated in aggressive environment of Na₂所以_4.-82％Fe.₂（所以_4.的）_3.在900℃的升高温度下在循环条件下，总持续时间为50次循环。热重量学技术用于近似热腐蚀的动力学。脱晶-6涂层在给定环境中比Stellite-21涂层赋予更好的热腐蚀性。扫描电子显微镜用于表征热腐蚀产品的表面。SN - 1687-9325 UR - HTTPS：//Doi.org/10.1155/2014/146391 Do - 10.1155/2014 / 146391 JF - 国际腐蚀PB - Hindwi Publishing Corporation KW - ER -