Effect of ceramic rolling on the mechanical properties of Ti42.5Cu42.5Ni10Zr5 bulk metallic glass composite

Prior plastic deformation processing, ceramic rolling, was utilized to tune mechanical properties of Ti42.5Cu42.5Ni10Zr5 bulk metallic glass (BMG) composite. The metallic glass composite exhibits plastic deformation with 15% thickness reduction ratio through ceramic rolling at room temperature. The mechanical properties of the Ti-based BMG composite can be improved by cold rolling, which the compressive strength rises 140 MPa and the cold-rolled sample exhibits enhanced plasticity of 5.3%. Such improvement in mechanical properties is attributed to the hydrostatic stress during ceramic rolling and the interaction between the crystal phases and pre-introduced shear bands.