Title

CHEMICAL CARACTERIZATION OF 4140 STEEL IMPLANTED BY NITROGEN IONS

CHEMICAL CARACTERIZATION OF 4140 STEEL IMPLANTED BY NITROGEN IONS

Authorship

Niño, Ely Dannier V.; C., Jose L. Pinto; Dugar-Zhabon, V.; M., José A. Henao; Garnica, Hernan; Durán, Fernando

DOI

10.5151/2594-5327-16909

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Abstract

AISI-SAE 4140 sample surfaces of different roughness which are implanted by nitrogen ions of 20 keV and 30 keV at a dose of 1017 ions/cm2 through a threedimensional ion implantation technique are studied. Crystal phases of nitrogen compositions of the implanted samples, obtained with help of an x-ray diffraction method, are confronted with the data reported by the International Centre for Diffraction Data (ICDD), PDF-2. It is observed that the implanted into the metal nitrogen atoms produce changes in orientation of crystal planes that is manifested as variations of the intensity of the refracted rays and of cell dimensions (a displacement of 2 theta of the maximum intensity position). An analysis for determining nitrogen atoms implanted by high-voltage pulsed discharges at low pressures in the crystal structure of the solid surface was carried out by X-Ray Diffraction due to this technique permits to assess the possibility of formation of new compounds.

 

AISI-SAE 4140 sample surfaces of different roughness which are implanted by nitrogen ions of 20 keV and 30 keV at a dose of 1017 ions/cm2 through a threedimensional ion implantation technique are studied. Crystal phases of nitrogen compositions of the implanted samples, obtained with help of an x-ray diffraction method, are confronted with the data reported by the International Centre for Diffraction Data (ICDD), PDF-2. It is observed that the implanted into the metal nitrogen atoms produce changes in orientation of crystal planes that is manifested as variations of the intensity of the refracted rays and of cell dimensions (a displacement of 2 theta of the maximum intensity position). An analysis for determining nitrogen atoms implanted by high-voltage pulsed discharges at low pressures in the crystal structure of the solid surface was carried out by X-Ray Diffraction due to this technique permits to assess the possibility of formation of new compounds.

Keywords

Ion Implantation; Superficial treatment; Corrosion; Roughness.

Ion Implantation; Superficial treatment; Corrosion; Roughness.