High-pressure effects on Ti-Zr-Ni metallic glass and its corresponding quasicrystal

► The Ti-Zr-Ni metallic glass and quasicrystal are metastable at ambient condition. ► The metallic glass and quasicrystal retained their structures at high pressures. ► For the quasicrystal, disorders are probably developed during compression. ► The metallic glass before compression is as disorderly as that under high pressure.