First investigations on twin-rolled Zr59Cu20Al10Ni8Ti3 bulk amorphous alloy by mechanical spectroscopy

Zr59Cu20Al10Ni8Ti3 is one among compositions of ZrCu-based alloys giving bulk amorphous material by cooling from the melt. Twin-roll casting enabling samples suitable for our inverted torsion pendulum has been processed in strips of about 0.60 mm thick. Low temperature IF measurements have been conducted on a specimen from room temperature to -120DGC at different heating and cooling rates. IF spectra exhibit peaks at around -40DGC (cooling) and -10DGC (heating) which are sensitive to heating rates and to the number of cycle (heating and cooling). DSC measurements have also been performed to help interpret the phenomena linked to the IF peaks.