The effect of laser irradiation of the surface of VT6 titanium alloy on its microstructure, roughness and friction coefficient

Abstract The article discusses the technology of laser processing of VT6 titanium alloy as a technological operation to improve properties and structure. A promising direction for reducing roughness during laser hardening with reflow can be the development of a process using additives that reduce the surface tension of the melt and increase the wettability of the surface. It was revealed that phase hardening and martensitic transformation β → α are the causes of hardening of titanium during laser processing. This is confirmed by a change in the width of the x-ray lines. It was found that during laser processing with a speed of 3.7 mm/s and higher, a fine-grained structure is achieved. The results show that, at a sufficiently high cooling rate of the substrate, the grain sizes remain practically unchanged. Russian Federation “The influence of magnetic fields and ion implantation on the electrical structure and properties of titanium, aluminum alloys and elementary semiconductors”