The purpose of this thesis is to present various hardening processes that can improve the surface properties of copper and copper alloys. It describes the laser remelting process, in which the rapid solidification of the melt leads to changes in the microstructure, resulting in a finer microstructure that influences the mechanical properties of the remelted surface layer.
In the thesis, we reviwed the literature on the properties and types of copper alloys, types of lasers and their operation, the fundamental mechanisms of laser remelting, and its influence on the mechanical properties of materials. As part of the research, we prepared samples of copper and bronze that were treated using different laser remelting parameters. For remelting process, we used a low-power Nd:YAG pulsed laser (up to 80W). Finally, we determined and presented the influence of various remelting parameters on changes in mechanical, microstructural, and corrosion properties of the treated samples, and compared the other.
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