Effect of hydrostatic pressure on reinforcing bulk metallic glasses investigated by synchrotron radiation and molecular dynamics simulations

Zhao, Wei; Xu, Tao; Feng, Shidong; Wang, Y.Y.; Qi, Li; Li, G.; Liu, R.P.

doi:10.1016/j.msea.2013.12.039

Cited by 9 publications

(1 citation statement)

References 12 publications

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“…The decompression data points did not re-trace the compression path, which indicated that the deformation of MGs under pressures is not entirely elastic. External pressure leads to the diffusion of atoms, thereby resulting in irreversible annihilation of free volume and a densification of MGs [23]. Therefore, the relative volume difference at low pressure is larger than that at high pressure during compression and decompression process.…”

Section: Methodsmentioning

confidence: 99%

Structural evolution of heavy rare Earth-based metal glass under high pressure

Wang¹,

Zhang²,

Li³

et al. 2020

J. Phys.: Condens. Matter

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The structural evolution of Er55Al25Co20 metallic glasses (MGs) at high pressure was studied through x-ray diffraction with synchrotron radiation. The compression ratio, differential structure factor, pair distribution function g(r), and relative resistance as functions of pressure were analyzed and discussed. A reversible polyamorphic transition with a clear hysteresis was detected in the Er55Al25Co20 MGs. The irreversible annihilation of free volume and voids led to a densification of the specimens. Electronic resistance measurements demonstrated that the transition was strongly correlated with the electronic structural evolution. The results provide a new insight into understanding the mechanisms of polyamorphism in MGs.

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Section: Methodsmentioning

confidence: 99%