High Temperature Corrosion Behavior of High Velocity Oxy Fuel Sprayed NiCrMoFeCoAl-30%SiO2 and NiCrMoFeCoAl-30%Cr2O3 Composite Coatings on ASTM SA213-T22 Steel in a Coal-fired Boiler Environment

被引：0
作者：
Patil V.G. [1 ]
Somasundaram B. [1 ]
Kandaiah S. [2 ]
Ramesh M.R. [3 ]
Kumar S. [1 ]
机构：
[1] School of Mechanical Engineering, REVA University, Bengaluru
[2] Department of Chemistry, School of Applied Sciences, REVA University, Bengaluru
[3] National Institute of Technology, Karnataka, Surathkal, Mangalore
来源：
International Journal of Engineering, Transactions A: Basics | 2022年 / 35卷 / 07期
关键词：
High-velocity Oxy Fuel; Hot Corrosion; Oxide Scale; Thermal Spraying; Thermogravimetric Analysis;
D O I：
10.5829/ije.2022.35.07a.19
中图分类号：
学科分类号：
摘要：
High-velocity oxy fuel (HVOF) sprayed coatings can improve the corrosion resistance of bare ASTM SA213-T22 boiler steel. In this report, we have investigated the NiCrMoFeCoAl-30%SiO2 and NiCrMoFeCoAl-30%Cr2O3 composite coatings were deposited on bare ASTM SA213-T22 boiler steel for corrosion protection. High-temperature corrosion studies were conducted in a molten salt (Na2SO4-60%V2O5) environment at 700ºC under thermo-cyclic conditions. The as-sprayed composite coatings are characterized for microstructure and mechanical properties. The thermo-gravimetric method was utilized to understand the kinetics of corrosion. Characterization of the corrosion products was examined by using scanning electron microscope (SEM)/ Energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The obtained results suggest both the composite coatings are favorable to corrosion resistance over the bare ASTM SA213-T22 boiler steel. The NiCrMoFeCoAl-30%Cr2O3 composite coating was concluded to present a superior corrosion resistance in the high-temperature corrosion environment because of the uniform distribution of the composite coating matrix and the development of protective protection Cr2O3 in the scale. The molten salt heat-treated chromium oxide containing coating shows good corrosion stability than the silica composite. This could be attributed to the high temperature assisted formation metal chromates, chromites and oxide layers. © 2022 Materials and Energy Research Center. All rights reserved.
引用
收藏
页码：1416 / 1427
页数：11
相关论文
共 40 条
[1]  
Ebrahimi N., Sedaghat Ahangari Hosseinzadeh A., Vaezi M., Mozafari M., Evaluation of corrosion resistance of bi-layered plasma-sprayed coating on titanium implants, International Journal of Engineering, Transactions A: Basics, 35, 4, pp. 635-643, (2022)
[2]  
Veda Spandana V., Jamuna Rani G., Venkateswarlu K., Venu Madhav V., Experimental study on yttria stabilized and titanium oxide thermal barrier coated piston effect on engine performance and emission characteristics, International Journal of Engineering, Transactions C: Basics, 34, 12, pp. 2611-2616, (2021)
[3]  
Rahnavard M., Hot corrosion behavior of functional graded material thermal barrier coating (research note), International Journal of Engineering, Transactions A: Basics, 30, 1, pp. 101-108, (2017)
[4]  
Mahdipoor M.S., Rahimipour M.R., Comparative study of plasma sprayed yittria and ceria stabilized zirconia properties, International Journal of Engineering, Transactions A: Basics, 26, 1, pp. 13-18, (2013)
[5]  
NAEIMI F., Tahari M., Effect of surface morphologies on the isothermal oxidation behavior of mcraly coatings fabricated by high-velocity oxyfuel processes, International Journal of Engineering, Transactions C: Basics, 30, 3, pp. 432-438, (2017)
[6]  
Singh S., Goyal K., Goyal R., Performance of cr3c2-25 (ni-20cr) and ni-20cr coatings on t91 boiler tube steel in simulated boiler environment at 900° c, Chemical and Materials Engineering, 4, 4, pp. 57-64, (2016)
[7]  
Ak N., Tekmen C., Ozdemir I., Soykan H., Celik E., Nicr coatings on stainless steel by hvof technique, Surface and Coatings Technology, 174, pp. 1070-1073, (2003)
[8]  
Sidhu H.S., Sidhu B.S., Prakash S., Evaluation of the hot corrosion behavior of lpg assisted hvof nicr wire sprayed boiler tube steels in molten salt environments, ISIJ International, 46, 7, pp. 1067-1074, (2006)
[9]  
Uusitalo M., Vuoristo P., Mantyla T., High temperature corrosion of coatings and boiler steels in oxidizing chlorine-containing atmosphere, Materials Science and Engineering: A, 346, 1-2, pp. 168-177, (2003)
[10]  
Wang B., Geng G., Levy A., Erosion and erosion-corrosion behavior of chromized-siliconized steel, Surface and Coatings Technology, 54, pp. 529-535, (1992)
1234