Ti-Ni-Ta-based surface alloy synthesized on the TiNi-substrate through electron-beam method: structure and physical-mechanical properties

The structure and physical-mechanical properties of Ti-Ni-Ta-based surface alloy synthesized on the TiNi-substrate through additive thin-film electron-beam method have been studied. synthesis was carried out by 30-fold alternation operations deposition a dopant film (Ti 60 Ta 40 (at.%), ~50 nm thick) liquid-phase mixing film/substrate using pulsed low-energy high-current electron beam. It found that alloy, whose thickness is ~1.8 μm, has an amorphous structure. established ~2 ~1.5 times higher values microhardness H OP elastic modulus E compared to initial TiNi-substrate, but parameter plasticity delta h shape recovery ratio eta close substrate. shown nature change in transition zone depends number sublayers, as well structural states phases sublayers. evaluation mechanical compatibility with given. Keywords: nickel titanium thin films, synthesis, structure, properties, strength ductility parameters.