V. S. Golubev, I. I. Vegera, V. E. Hodyush, O. V. Dyachenko, K. V. Protasevich
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Surface Alloying of Hardox 600 Steel Using a Fiber Laser
The features of surface alloying of Hardox 600 steel using B4C, WC, and Ni powders based on exposure to ytterbium fiber laser radiation are studied. The study of the geometric dimensions, quality, and structure of the surface layers was carried out. The laser-processing modes for steel were selected depending on the power density of the laser radiation of the installation, the linear velocities of the beam, and the diameter of the laser spot. It is shown that the doping process is critical to the regimes of laser action. At a radiation power of ~2 kW, high-quality doping zones can be observed more stably over the entire range of laser beam scanning speeds under study. With an increase in the depth of the alloying zone when using B4C, the microhardness decreases, which is associated with a decrease in the concentration of introduced alloying elements. The microhardness of the layer can vary in the range of 7300–16 000 MPa.
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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