Crystallization of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass under high pressure examined by <i>in situ</i> synchrotron radiation x-ray diffraction

Chao, Yang; Wang, W. K.; Liu, R. P.; Zhan, Zaiji; Sun, Liling; Zhang, J.; Jiang, J.Z.; Yang, Lirong; Lathe, C.

doi:10.1063/1.2164541

Cited by 11 publications

(11 citation statements)

References 28 publications

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“…Evidently application of some minimum pressure is needed to suppress crystallization in the supercooled liquid, ~3 GPa, and HPQ samples are glassy if higher pressure is applied. Such retardation of crystallization under high pressure was observed in several studies before 15 , 16 . It should be noted that in our experiment samples are compressed at RT and then heated under pressure.…”

Section: Resultssupporting

confidence: 53%

Pressure Induced Liquid-to-Liquid Transition in Zr-based Supercooled Melts and Pressure Quenched Glasses

Dmowski

Gierlotka

Wang

et al. 2017

Sci Rep

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Through high-energy x-ray diffraction and atomic pair density function analysis we find that Zr-based metallic alloy, heated to the supercooled liquid state under hydrostatic pressure and then quenched to room temperature, exhibits a distinct glassy structure. The PDF indicates that the Zr-Zr distances in this glass are significantly reduced compared to those quenched without pressure. Annealing at the glass transition temperature at ambient pressure reverses structural changes and the initial glassy state is recovered. This result suggests that pressure causes a liquid-to-liquid phase transition in this metallic alloy supercooled melt. Such a pressure induced transition is known for covalent liquids, but has not been observed for metallic liquids. The High Pressure Quenched glasses are stable in ambient conditions after decompression.

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Section: Resultssupporting

confidence: 53%

Pressure Induced Liquid-to-Liquid Transition in Zr-based Supercooled Melts and Pressure Quenched Glasses

Dmowski

Gierlotka

Wang

et al. 2017

Sci Rep

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“…Naturally, a confusion why thermodynamic metastable MGs and quasicrystals could exist over wide ranges of pressure emerges. Studies on some metallic glasses [33][34][35] show that external pressures could increase onsets of quasicrystal and crystal formation temperatures. Such phenomenon could be attributed to the low atomic mobility at high pressures.…”

Section: Discussionmentioning

confidence: 99%

High-pressure effects on Ti–Zr–Ni metallic glass and its corresponding quasicrystal

Fang

Jiang

2012

Journal of Non-Crystalline Solids

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“…14͒ that the percentage of the icosahedron packing begins to decrease at about 15 GPa while the fcc and hcp packing begins to increase, which is consistent with experimental observations in Zr-based MGs. 26,27 …”

Section: F Change In Topological Packing and Polymorphic Transitionmentioning

confidence: 98%

Equation of state and topological transitions in amorphous solids under hydrostatic compression

Guo

2010

Journal of Applied Physics

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Equation of state (EoS) relating volume and pressure or other thermodynamics state variables is well-established in crystalline systems, but remains rather incomplete in structurally disordered materials such as metallic glasses. Recent experiments and calculation show that the EoS in some amorphous metals exhibits constitutive behavior deviating significantly from that predicted from many well-established EoS, suggesting fundamentally different mechanisms in operation. But due to the lack of long-range order, it is difficult to uncover the underlying atomic process directly from experiment. Here we report a systematic investigation of the constitutive response of a model ZrNi metallic glass under hydrostatic compression by using extensive molecular dynamics simulation. We show that at low-pressure, the EoS is dominated by large decrease in the excess volumes, presumably those of the valence electrons; and at high-pressure, hardcore repulsion takes over. The two is bridged by a polymorphic topological transition occurring in close association with Ni, one of the alloy elements with much lower compressibility and rigid neighbor bonds that exhibit the topological transition in both short and medium-range. The complex and detailed topological rearrangement reported here may form the general underlying mechanism for the EoS of many metallic glasses composed predominately of metals with different compressibility, such as early and late transition metals and some rare-earth metals. The necessity of the electronic structural change thought to be responsible for some reported EoS is discussed also in light of this work.

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Crystallization of Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass under high pressure examined by in situ synchrotron radiation x-ray diffraction

Cited by 11 publications

References 28 publications

Pressure Induced Liquid-to-Liquid Transition in Zr-based Supercooled Melts and Pressure Quenched Glasses

Pressure Induced Liquid-to-Liquid Transition in Zr-based Supercooled Melts and Pressure Quenched Glasses

High-pressure effects on Ti–Zr–Ni metallic glass and its corresponding quasicrystal

Equation of state and topological transitions in amorphous solids under hydrostatic compression

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