Ultrasonic excitation induced nanocrystallization and toughening of Zr_46.75Cu_46.75Al_6.5 bulk metallic glass

W. Zhai^a, L.H. Nie^a, X.D. Hui^b, Y. Xiao^a, T. Wang^b, B. Wei^a^,^*(

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Fig. 4.. Nanoindentation tests on Zr_46.75Cu_46.75Al_6.5 BMG: (a) typical nanoindentation load-displacement curves of the samples in as-cast state and subjected to ultrasonic vibration; (b) cumulative distributions of the critical load at the first pop-in event.