Abstract
The paper reports that the shear-band spacing can be controlled by the Bridgman solidification technique for a model alloy of Zr38.3Ti32.9Nb7.3Cu6.2Be15.3. The volume percent of the glass phase is almost independent of the withdrawal velocity. The shear-band spacing reaches a minimum of about 3 μm with withdrawal velocity of 0.8 mm/s. The optimized mechanical properties, such as the fracture strength of ∼2100 MPa and plastic strain of ∼19%, have been obtained. The large plastic deformation is due to the dislocation slips in the dendrite phase and shear-band propagations in the glass phase.
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