Abstract
In this study, we reported a phase-separated Zr62Cu18Ni10.4Al8Fe1.6 bulk metallic glass exhibiting a significant plastic strain at room-temperature. The engineering plastic strain, fracture strength and Young's modulus were determined to be about 32.6%, 2919MPa and 90GPa respectively. The enhanced ductility was explained from the view point of elastic energy dissipation, separation length and shear modulus difference between separated phases. This result provides a promising approach to improve the mechanical properties of bulk metallic glasses through compositional and structural design by microalloying.
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