The invention discloses a preparing method for a medium-
chromium-based ferritic stainless steel low power structure, and belongs to the technical field of medium-
chromium-based ferritic stainless steel structure preparing. An
erosion agent comprises, by volume, 10-80 parts of ethyl
alcohol, 20-90 parts of
nitric acid, 50-100 parts of
hydrochloric acid and 50-200 parts of
distilled water. The preparing method for the low power structure comprises the steps that firstly, the ethyl
alcohol, the
hydrochloric acid, the
nitric acid and the
distilled water are evenly mixed, and the
erosion agent is prepared; then, an eroded stainless steel sample is
cut and polished, and an
erosion surface is obtained; after erosion is finished, the steel sample is placed in an alkaline solution to be cleaned, and acid removing treatment is conducted; and finally, the steel sample is placed in the ethyl
alcohol solution to be cleaned, the steel sample is blown dry after cleaning, the erosion face is scanned through a
scanner, and a picture of a low-power condensation structure is prepared. An
effective method is provided for preparing and observing of the medium-
chromium-based ferritic stainless steel low power structure, the prepared structure picture is clear and visible, and the quality of the steel sample is effectively represented.