Abstract
The compression properties ofZr41Ti14Cu12.5Ni10Be22.5,Zr44.4Nb7Cu13.5Ni10.8Be24.3 bulk metallicglasses and Ni77P23 binary amorphous alloy areinvestigated at room temperature up to 24 GPa, 39 GPa and 30.5 GPa,respectively, using in-situ high pressure energy dispersive x-raydiffraction with a synchrotron radiation source. The pressure–volumerelationship of Ni77P23 amorphous alloy isconsistent well with the second order Birch–Murnaghan (B-M) equationwithin the experimental pressure range. However, under higher pressure,the experimental data of Zr-based specimens deviate from the B-Mequation. Compare to the binary amorphous alloy, less excess freevolume existing in the bulk metallic glass and multi-component atomicconfiguration results in a two-stage relationship betweencompressibility and pressure.
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