Formation of nanosized surface layers of 03Х17Н12М2 stainless steel by implantation of N$^+$ ions

The accumulation of nitrogen to 14 at.% in the nanosized surface layers of samples of 03Х17Н12М2 stainless steel after implantation of N$^+$ ions, the formation of metal nitrides, mainly CrN chromium nitride, and solid solution introduction has been established. It is shown that implantation of N$^+$ ions using pretreatment by Ar$^+$ and O$^+$ ions leads to a decrease in the maximum nitrogen concentration by 2 or more times. It is assumed that this is due to segregation to the surface layers of iron atoms under irradiation by Ar$^+$ ions and the formation of Cr$_{2}$O$_{3}$ chromium oxide and CrOOH chromium hydroxide under irradiation by O$^+$ ions.