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Title: Evolution of the atomic structure of a supercooled Zr 55 Cu 35 Al 10 liquid

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1411288
Grant/Contract Number:
AC02-06CH11357; 117612; 102013
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Intermetallics
Additional Journal Information:
Journal Volume: 82; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-12-05 14:20:16; Journal ID: ISSN 0966-9795
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Zhao, Jingfeng, Tang, Zheng, Kelton, K. F., Liu, C. T., Liaw, P. K., Inoue, A., Shen, Xiaoping, Pan, Shiyan, Johnson, M. L., Chen, Guang, and Fan, Cang. Evolution of the atomic structure of a supercooled Zr 55 Cu 35 Al 10 liquid. United Kingdom: N. p., 2017. Web. doi:10.1016/j.intermet.2016.11.010.
Zhao, Jingfeng, Tang, Zheng, Kelton, K. F., Liu, C. T., Liaw, P. K., Inoue, A., Shen, Xiaoping, Pan, Shiyan, Johnson, M. L., Chen, Guang, & Fan, Cang. Evolution of the atomic structure of a supercooled Zr 55 Cu 35 Al 10 liquid. United Kingdom. doi:10.1016/j.intermet.2016.11.010.
Zhao, Jingfeng, Tang, Zheng, Kelton, K. F., Liu, C. T., Liaw, P. K., Inoue, A., Shen, Xiaoping, Pan, Shiyan, Johnson, M. L., Chen, Guang, and Fan, Cang. Wed . "Evolution of the atomic structure of a supercooled Zr 55 Cu 35 Al 10 liquid". United Kingdom. doi:10.1016/j.intermet.2016.11.010.
@article{osti_1411288,
title = {Evolution of the atomic structure of a supercooled Zr 55 Cu 35 Al 10 liquid},
author = {Zhao, Jingfeng and Tang, Zheng and Kelton, K. F. and Liu, C. T. and Liaw, P. K. and Inoue, A. and Shen, Xiaoping and Pan, Shiyan and Johnson, M. L. and Chen, Guang and Fan, Cang},
abstractNote = {},
doi = {10.1016/j.intermet.2016.11.010},
journal = {Intermetallics},
number = C,
volume = 82,
place = {United Kingdom},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.intermet.2016.11.010

Citation Metrics:
Cited by: 2works
Citation information provided by
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  • The workability of the supercooled liquid in metallic glass has been examined through the extrusion of a Zr{sub 6.5}Al{sub 10}Ni{sub 10}Cu{sub 15} at.% bulk glassy alloy with a wide supercooled liquid region. The metallic glass exhibited superplastic-like deformation behavior at high strain rates, resulting in an excellent workability. The working throughout a wide range of extrusion conditions was compatible with retaining the glass phase and the original strength. The extrusion maps and the expression between extrusion temperature, pressure and ram-speed have been established. Moreover, the features of working such as the Barus effect and the advantage of a small stepwisemore » increase in strain rate have been revealed.« less
  • The shear viscosity of liquid Zr[sub 41.2] Ti[sub 13.8] Cu[sub 12.5] Ni[sub 10.0] Be[sub 22.5] has been measured. At the liquidus temperature we find an extremely high viscosity of 2.5thinspthinspPathinsps, favoring glass formation. At deep supercooling the time scales for the diffusion of small and medium sized atoms as reported in the literature decouple from the internal relaxation time as probed by our viscosity measurements. Similarly, crystallization from the supercooled liquid state can be described with an effective diffusivity that scales with the viscosity at high temperatures and is Arrhenius-like at deep supercooling. [copyright] [ital 1999] [ital The American Physicalmore » Society]« less
  • The self-diffusivity of Be in the bulk metallic amorphous alloy Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni{sub 10}Be{sub 22.5} is investigated. Below the glass transition temperature the data suggest a single atomic jump diffusion behavior of Be. By taking into account the change in configurational entropy due to the glass transition, we explain the mechanism for diffusion of Be in the supercooled liquid state (i.e., above the glass transition) of Zr{sub 41.2}Ti{sub 13.8}Ni{sub 10}Cu{sub 12.5}Be{sub 22.5} by single atomic jumps in a slowly changing configuration of neighboring atoms.
  • The shear viscosity of liquid Zr{sub 41.2} Ti{sub 13.8} Cu{sub 12.5} Ni{sub 10.0} Be{sub 22.5} has been measured. At the liquidus temperature we find an extremely high viscosity of 2.5thinspthinspPathinsps, favoring glass formation. At deep supercooling the time scales for the diffusion of small and medium sized atoms as reported in the literature decouple from the internal relaxation time as probed by our viscosity measurements. Similarly, crystallization from the supercooled liquid state can be described with an effective diffusivity that scales with the viscosity at high temperatures and is Arrhenius-like at deep supercooling. {copyright} {ital 1999} {ital The American Physicalmore » Society}« less
  • The viscosity of the Zr{sub 46.75}Ti{sub 8.25}Cu{sub 7.5}Ni{sub 10}Be{sub 27.5} bulk metallic glass forming alloy in the supercooled liquid was measured using parallel plate rheometry. The measurements were carried out with different heating rates between 0.0167 and 1.167 K/s as well as isothermally. Because of the high thermal stability above the glass transition of this bulk metallic glass former with respect to crystallization, it was possible to measure viscosities in the range from 10{sup 10} to 10{sup 6} poise. This region of viscosities has not been previously measured for supercooled metallic melts. Our measurements suggest that the viscosity of themore » supercooled liquid of this bulk glass former exhibits a small Vogel--Fulcher temperature relative to the glass transition temperature, similar to silicate glasses. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.« less