Abstract
A ceramic matrix coating for minimizing steel loss of stainless steel at high temperatures was prepared by handled air-spraying technique, and the influence of coating on surface quality of stainless steel was mainly investigated in laboratory. Experimental results showed that the protective coating reduced the oxidation of stainless steel by more than 91% and minimized high-temperature scaling and also enhanced steel surface quality. The scales of coated specimen were removed completely and the scales of uncoated specimen were partly residual on the surface after cooling process. Mn-rich and Fe-rich zones were found in the oxides. The Cr2O3 found in scales came from the underlying stainless steel and formed a Cr-rich layer along the spalled surface.
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