Abstract
One major problem with waste incineration is the corrosion of superheater tubes at high temperatures. The presence of sulfate and chloride in this setting poses a severe risk to the boiler's service life. In this work, pack aluminizing was used to prepare titanium aluminide coatings, which was then subjected to five distinct NaCl+Na2SO4 salt combination proportions for 168 h at 600 °C. The outcomes demonstrated that in the presence of solid Na2SO4 deposits, titanium aluminide coatings displayed remarkably low corrosion rates. Adding 1/6 NaCl significantly accelerated the rate of corrosion. The electrochemical corrosion resulting from eutectization between NaCl and Na2SO4 was again considerably amplified when the NaCl level was raised to 1/4.
Published Version
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