Microstructure and properties of melt-quenched TiNi-based alloys

Titanium-nickel (TiNi) based alloys doped with hafnium and copper have been obtained by melt-jet spinning at a cooling rate of 10$^5$–10$^6$ K/s. The melt-spun ribbons have been studied by the electron – microscopy and X-ray diffraction techniques. It is established that, depending on the content of doping elements and cooling rate, the alloys occurred in an either amorphous or mixed amorphous-crystalline state. Mechanical properties of the obtained alloys have been measured.