Anti-oxidation of heat-resistant alloy castings

- Mar 06, 2021-

This type of alloy is also called superalloy, which is of great significance to the industrial sector and application technology under high temperature conditions. There are two ways to improve the oxidation resistance of steel: one is to add alloying elements such as Cr, Si, Al to the steel, or to carry out Cr, Si, Al alloying treatment on the surface of the steel. They can quickly form a dense oxide film in an oxidizing atmosphere, and firmly attach to the surface of the steel, thereby effectively preventing the oxidation from proceeding; the second is to form a high melting point oxidation on the surface of the steel. High temperature resistant coatings such as materials, carbides, and nitrides.