Effect of the accelerating voltage during pulsed irradiation with [Cr.sup.+] ions on the surface layer composition of carbon steel St3

• Published in: Physics of the solid state pp. 631 - 636
• Main Authors: Vorob'ev, V.L, Bykov, P.V, Bayankin, V.Ya, Bystrov, S.G, Porsev, V.E, Bureev, O.A
• Format: Journal Article
• Language: English
• Published: Springer 01-03-2015
• Subjects: Alloys; Carbon steel; Iron oxides
• ISSN: 1063-7834; 1090-6460
• DOI: 10.1134/S1063783415030361

The formation of [Cr.sub.2][O.sub.3], Cr[O.sub.2], Cr[O.sub.3] and FeO, [Fe.sub.2][O.sub.3] oxides in surface layers of steel St3 samples irradiated with [Cr.sup.+] ions has been revealed. The oxide content decreases with increasing accelerating voltage, which is caused by a more intense surface sputtering and a temperature increase. It has been found that the hardness of a surface layer ~250 nm deep increases by 20% after irradiation with an accelerating voltage of 20 kV