Tthe study of steel surface hardening at combined ion and laser irradiation

Abstract

The motivation of the work is caused by the need to develop and to research new methods for modifying physical and mechanical properties of steel details surface for various units and devices. The main aim of the study is the investigation of the combined ion and laser beams action for physical and mechanical properties of the constructional and tool steels surfaces. The methods used in the study: Rutherford backscattering spectrometry, Vickers microhardness testing, computer simulation of ions and solid state interaction. The results: The experimental data show the perceptivities of surface properties modification by combined ion and laser beam irradiation.In particular, it has been found that the titanium ion treatment and laser hardening result in microhardness enhancement of 45 and U8 steels up to 6 times. The authors have evaluated the possibility of the proposed analytical methodology for determining the basic parameters polyenergetic ion implantation using a vacuum arc ion source. Comparing the results of modeling and spectroscopy Rutherford backscattering spectrometry, it is possible to talk about the opportunity of using the model to optimize the processes of ion implantation.

Keywords

• high-dose ion implantation
• laser thermal treatment
• surface modification
• microhardness