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Gvozdeva
77-30569/330611 Investigation of the processes of laser doping of aluminum alloy surfaces
Engineering Education # 03, March 2012 This paper presents an analysis of scientific information on the experiments carried out in the field of laser doping of aluminum alloy surfaces with various components in a wide range of treatment modes with different types of lasers. The authors analyzed laser alloying of aluminum alloys with non-metallic components, laser alloying of aluminum alloys with metallic components and laser alloying of aluminum alloy with compounds. It was found that laser alloying of aluminum alloy with metal components, their mixtures and alloys increases surface performance. A distinctive feature of the structure formation of doped zones of aluminum alloys is high satiation of solid solution which exceeds solubility under equilibrium conditions as well as formation of intermetallic compounds. It is shown that there is a real possibility of laser hardening of aluminum alloys: by changing the parameters of the surface treatment with a pulsed or continuous laser beam one can control the characteristics of doped zones, such as size, concentration, saturation components, structure, and microhardness.
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