High temperature oxidation resistance of stainless steel doped with Yttrium using ion implantation

The addition of some amount of oxygen reactive elements like Y and rare earth elements (REE) Ce, La, Er and others into stainless steels or iron chromium alloys improves their oxidation resistance at high temperature.
There are numerous methods of incorporation of REE into steel by surface treatment, e.g.: ion implantation, metal organic, chemical vapour deposition, sol-gel coating, pack cementation, screen-printing, molten-salt electrodeposition.
In the present work we intend to use yttrium as an active element which will be incorporated into 304, 316 and 430 stainless using conventional implantation with MEVVA type of Y ion source.
The samples will be examined by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX), X-ray diffraction (XRD) and crucially important Rutherford Back Scattering (RBS) measurements and subjected to oxidation in air at a temperature of 1000°C for a period 100 h.
Results obtained with the use of HIPPB method and ion implantation will be compared and discussed.