Excellent plasticity of a new Ti-based metallic glass matrix composite upon dynamic loading

Shear bands of as-cast and semi-solid Ti48Zr27Cu6Nb5Be14 bulk metallic glass matrix composites

“…Qin et al [18] studied Cu-based BMGMC and found that the ductile dendrites deflected the shear band propagating direction, resulting in shear band branching, which improved plasticity. Larger crystals were also found to affect the movements of shear bands, for example, blocking the expansion of shear bands, promoting shear band multiplicity, intersecting shear bands in different directions, inducing the branching of the shear bands, forcing the shear bands to bend, and causing the expansion directions to shift [19][20][21][22][23] . The relationship between the content of the crystal phase and shear bands in BMGMCs showed that as the crystal content increased, the shear bands underwent some of the movements mentioned above [24] .…”

Numerical Simulation of Ti-Based Metallic Glasses as Whipple Shield Bumper by Smoothed Particle Hydrodynamics Methods

“…Previous studies about the Johnson-Cook constitutive model and Mie-Gruneisen equations of MGs have been carried out [12][13][14][15][16][17][18]. We chose the parameters from these works and fitted the Johnson-Cook fracture model parameter of MGs from these experiments data [19,20] by least squares method.…”

Investigation on the mechanically-induced nanocrystallization in metallic glasses

“…The poor plastic deformation results from highly localized shear banding as well as shear softening [3][4][5]. The catastrophic brittle deformation becomes the major weakness for wide structural application of MGs as engineering materials [6][7][8]. To circumvent the problem of room-temperature brittleness, several post treatment methods have been introduced including surface mechanical treatment [9], defect printing [10], ion irradiation [11], notching [12], and ultrasonic excitation [13].…”