Hot corrosion behavior of plasma-sprayed NiCrAlY/TiO2 and NiCrAlY/Cr2O3/YSZ cermets coatings on alloy steel
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چکیده
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Hot corrosion behavior of HVOF-sprayed CoNiCrAlYSi coatings in a sulphate environment
HVOF-sprayed CoNiCrAlYSi coatings were tested at 900 °C in a hot corrosion environment containing sodium-potassium sulphates. The HVOF spraying caused the typical splat-on-splat structure. The results after the hot corrosion testing showed that the corrosion preferentially occurred at the coating surface and the splat boundaries. The oxidation along the splat boundaries can isolate the splat fr...
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ژورنال
عنوان ژورنال: Surfaces and Interfaces
سال: 2021
ISSN: 2468-0230
DOI: 10.1016/j.surfin.2020.100810