Plasticity improvement for dendrite/metallic glass matrix composites by pre-deformation

The Corrosion Behavior of Ti-Based Metallic Glass Matrix Composites in the H2SO4 Solution

“…Note that the size of dendrites actually increases with the rod size, even though the dendrites' volume fraction in all these samples is almost the same, with a value around 57% [20]. The similar situation has been verified in other MGMCs [20,21]. The dendrite sizes, measured by Image-Pro software (6.0, Media Cybernetics Inc., Rockville, MD, USA), are around 0.7, 0.9, and 1.2 µm for Φ2, Φ3, and Φ6 mm rods, respectively.…”

A strategy for designing bulk metallic glass composites with excellent work-hardening and large tensile ductility

“…Besides, matching the Young's Table 2. modulus of dendrite-phase and glass-matrix could be an appropriate reason for the excellent mechanical properties in present BMG composites. In the current work, by adding of Sn, the Young's modulus of dendrite-phase and glass-matrix are tailored simultaneously, which leads to an elastic matching between dendritephase and glass-matrix in Sn2 BMG composite [15,16,46]. The elastic matching means that the stress in dendrite-phase can be effectively transfer to glass-matrix, and lead to multiple shear bands in glass-matrix.…”

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] .…”