Structural relaxation of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass under high pressure
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Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass (BMG) is annealed at 573 K under 3 GPa and its structural relaxation is investigated by X-ray diffraction, ultrasonic study, compression as well as sliding wear measurements. It is found that after the ZrTiCuNiBe BMG sample was annealed under high pressure, the mechanical properties were improved. Moreover, theBMG with relaxed structure exhibits markedly different acoustic properties. These results are attributed to the fact that relaxation under high-pressure results in a microstructural transformation in the BMG.
KeywordsZr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass high pressure structure relaxation
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