Formation of surface properties of VT18u titanium alloy by laser pulse treatment

Directed changing properties of amorphous and nanostructured metal alloys with help of nanosecond laser impulses

“…In the case of similar plastic properties of a thin film of an amorphous-nanocrystalline metal alloy, it is possible to use common mathematical methods of calculations and modeling [14][15][16][17][18][19][20][21]. The dependences of the viscosity of microfracture on the distance to the center of the reflow zone shown in Fig.…”

“…The local treated areas retain the amorphous-nanocrystalline state as a whole without changes, which makes it possible to use the material for its intended purpose without problems [14]. Thus, it is possible to optimize the physical and mechanical characteristics of an amorphous-nanocrystalline metal alloy with subsequent treatment by nanosecond laser impulses.…”

“…The laser cuts well any metals with various coefficients of heat conductivity. The high energy power of the laser beam ensures that the steel melts in the cutting area [14]. Advantages of laser treatment of steel: there is no mechanical deformation of the steel billet completely, since the thermal impact zone is very limited; the high accuracy and speed of treatment; the edge in the laser cutting zone of steel is very smooth, without influxes and burrs.…”

“…Experimental data confirm the possibility of the formation of certain properties in local areas under the influence of a given number of laser impulses, lasting several nanoseconds. Laser processing can affect not only the properties of amorphous-nanocrystalline metal alloys, but also to be effective for metals and alloys based on iron, cobalt, etc [11,14].…”

Plasma electrolytic processing of bimetals at the anodic process

“…There are various technologies to heat local areas of the material, such as induction [13], laser [14], electron beam [15] heating, etc. However, this heating usually can be shorttime (not more than a few seconds, but usually a split second), because an increase in heating time leads to overheating of zones where this is unacceptable.…”