International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Computer experiments were carried out with a simulation model of alloy crystallization in this work. The model was preliminarily calibrated for alloys of the Al-Si system. The presence of a non-equilibrium eutectic in pre-eutectic alloys with a silicon content of 1.0% – 1.6% has been detected. The minimum cooling rates at which the formation of an eutectic in these alloys is possible have been determined.

The microstructure and phase composition of the eutectic alloy Ti47.5Zr30.2Mn22.5 obtained using titanium sponge, as well as the phase composition of hydrogenation product were investigated by scanning electron microscopy and X-ray phase analysis. It was found that when iodide titanium was completely replaced by titanium sponge, the alloy structure remained eutectic and consisted of bcc solid solution and Laves phase. It was shown that after a sorption-desorption cycle the alloy was in activated state and was capable to absorb hydrogen at room temperature and low pressure (0.21 MPa) starting from the first seconds of contact with hydrogen atmosphere, with hydrogen capacity of 2.61 wt.%.