Laser-assisted fabrication and in vitro verification of functionalized surface for cells biointegration

The paper investigates how the surface relief of an implant affects cell behavior. Currently, most implant manufacturers claim the key impact biocompatibility factor to be surface micro-roughness. We suppose that the interaction between cells and implants also depends on such relief peculiarities as continuous or discontinuous topography, subcellular distance between peaks and presence of porous oxide layer. We have developed the laser processing conditions that provide three different reliefs: "open grooves", "grid" and "close grooves". Along with the micro-roughness characteristics the reliefs differ with their deepness and period of groove

Comparative investigation of the structure, phase composition, and mechanical properties of Ni-based high-temperature alloys manufactured by different methods

A comprehensive comparative study of the structure, phase composition, and mechanical properties of heat-resistant nickel-based Ni-Cr-(X) alloys produced by the methods of traditional metallurgy and self-propagating high-temperature synthesis (SHS metallurgy) is carrie

The effect of pulsed nanosecond laser irradiation on the corrosion resistance of Mg-Al-Zn magnesium alloy

The corrosion resistance of Mg-Al-Zn magnesium alloy with coarse-grained and ultrafinegrained structures before and after the treatment of the surface of the alloy with pulsed nanosecond laser irradiation is studie

Comparative study of the structural-phase state and mechanical properties of Ni-Cr(X) and Fe-Cr(X) heat-resistant alloys fabricated by additive technologies

Comparative studies of peculiarities of the formation, thermal stability of the structure, and mechanical properties of heat-resistant alloys based on iron and nickel and fabricated using additive technologies (ATs) by laser metal deposition and selective laser melting are performed. It is established that a cellular structure is formed in alloys fabricated by the laser metal deposition and small pores up to 200 nm in size are present. The structure of alloys fabricated by selective laser melting contains elements with a globular and lamellar morphology and incompletely melted regions, as well as large pores on the order of 5 μm in size. The possibility of manifestation of the nanophase hardening effect due to the presence of nanodimensional particles of chromium silicides is show