Abstract
The paper presents the results of cyclic oxidation studies performed for two ferritic stainless steels: Crofer 22 APU and H25T. The surface of the steels was coated with particles of oxides of the following active elements: yttrium, cerium, samarium, and gadolinium. Two coating methods were used: electrolysis and dip-coating. In addition, yttrium ion implantation was carried out for the purpose of reference. Cyclic oxidation tests were carried out for ca. 1200 h in air at 900 °C. It was determined that particles of oxides of active elements reduce the rate of oxidation, improve the adhesion of the Cr2O3 scale to the substrate, and decrease area specific resistance.
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