It is well-known that the corrosion introduced by nitrogen depends on the steel composition and especially on Cr contents has a suitable amount of Cr on its surface to enhance the corrosion resistance of AISI 304. As is well-known, anticorrosive effect can be obtained when Cr is in excess of 20% in an iron matrix.
The AISI 304-type stainless steel (SS) which contains high chromium content is a commonly used engineering material mainly because of its corrosion resistance. High-dose ion implantation is a possible solution for producing nitride phase layers in a 304 type SS. New phases or structures can be made enhancing the surface properties of the treated materials.
There were beneficial effects by the treatment of corrosion resistance. The ion implantation had no negative effect on the corrosion resistance of the AISI 304.