Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses

T. Yamasaki, M. Yamada, T. Mori, T. Kikuchi, Y. Yokoyama, A. Inoue, Do Hyang Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Viscous flow behaviour of supercooled liquids and mechanical properties in Zr55+XCu30-XNi5Al10 (X=0, 5 and 10 at. %) and Zr65Cu18Ni7Al10 bulk metallic glasses (BMGs) have been examined. Viscosity has been measured by using a penetration viscometer at a high-speed heating rate of 400 K/min. With increasing Zr-content, Tg tended to decrease and Tx tended to increase, resulting ΔTx (=Tx-Tg) increaseing up to about 170 K under a heating rate of 400 K/min by the DSC analysis. The viscosity lowered about one order of magnitude, e.g., minimum value of the viscosity decreased from 3∼4×106 Pa-s for the Zr55Cu30Ni5Al10 and Zr 60Cu25Ni5Al10 BMGs down to 5∼6×105 Pa-s for the Zr65Cu20Ni 5Al10 and Zr65Cu18Ni 7Al10 BMGs under the same heating condition. Compression tests were also carried out at a slow strain rate of about 1 × 10 -4 s-1 at room temperature. With increasing Zr-content, the apparent yield stress was decreased but the total strain at fracture was increased significantly, suggesting that there is a strong relationship between viscosity and the mechanical properties in these BMGs.

Original languageEnglish
Title of host publicationPRICM7
Pages1046-1049
Number of pages4
DOIs
Publication statusPublished - 2010 Aug 17
Event7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia
Duration: 2010 Aug 22010 Aug 6

Publication series

NameMaterials Science Forum
Volume654-656
ISSN (Print)0255-5476

Other

Other7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
CountryAustralia
CityCairns, QLD
Period10/8/210/8/6

Fingerprint

Metallic glass
viscous flow
Viscous flow
metallic glasses
mechanical properties
Viscosity
viscosity
Mechanical properties
Liquids
liquids
Heating rate
heating
viscometers
Viscometers
compression tests
strain rate
Yield stress
Strain rate
Compaction
penetration

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Yamasaki, T., Yamada, M., Mori, T., Kikuchi, T., Yokoyama, Y., Inoue, A., & Kim, D. H. (2010). Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses. In PRICM7 (pp. 1046-1049). (Materials Science Forum; Vol. 654-656). https://doi.org/10.4028/www.scientific.net/MSF.654-656.1046
Yamasaki, T. ; Yamada, M. ; Mori, T. ; Kikuchi, T. ; Yokoyama, Y. ; Inoue, A. ; Kim, Do Hyang. / Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses. PRICM7. 2010. pp. 1046-1049 (Materials Science Forum).
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abstract = "Viscous flow behaviour of supercooled liquids and mechanical properties in Zr55+XCu30-XNi5Al10 (X=0, 5 and 10 at. {\%}) and Zr65Cu18Ni7Al10 bulk metallic glasses (BMGs) have been examined. Viscosity has been measured by using a penetration viscometer at a high-speed heating rate of 400 K/min. With increasing Zr-content, Tg tended to decrease and Tx tended to increase, resulting ΔTx (=Tx-Tg) increaseing up to about 170 K under a heating rate of 400 K/min by the DSC analysis. The viscosity lowered about one order of magnitude, e.g., minimum value of the viscosity decreased from 3∼4×106 Pa-s for the Zr55Cu30Ni5Al10 and Zr 60Cu25Ni5Al10 BMGs down to 5∼6×105 Pa-s for the Zr65Cu20Ni 5Al10 and Zr65Cu18Ni 7Al10 BMGs under the same heating condition. Compression tests were also carried out at a slow strain rate of about 1 × 10 -4 s-1 at room temperature. With increasing Zr-content, the apparent yield stress was decreased but the total strain at fracture was increased significantly, suggesting that there is a strong relationship between viscosity and the mechanical properties in these BMGs.",
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Yamasaki, T, Yamada, M, Mori, T, Kikuchi, T, Yokoyama, Y, Inoue, A & Kim, DH 2010, Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses. in PRICM7. Materials Science Forum, vol. 654-656, pp. 1046-1049, 7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7, Cairns, QLD, Australia, 10/8/2. https://doi.org/10.4028/www.scientific.net/MSF.654-656.1046

Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses. / Yamasaki, T.; Yamada, M.; Mori, T.; Kikuchi, T.; Yokoyama, Y.; Inoue, A.; Kim, Do Hyang.

PRICM7. 2010. p. 1046-1049 (Materials Science Forum; Vol. 654-656).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses

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AU - Inoue, A.

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N2 - Viscous flow behaviour of supercooled liquids and mechanical properties in Zr55+XCu30-XNi5Al10 (X=0, 5 and 10 at. %) and Zr65Cu18Ni7Al10 bulk metallic glasses (BMGs) have been examined. Viscosity has been measured by using a penetration viscometer at a high-speed heating rate of 400 K/min. With increasing Zr-content, Tg tended to decrease and Tx tended to increase, resulting ΔTx (=Tx-Tg) increaseing up to about 170 K under a heating rate of 400 K/min by the DSC analysis. The viscosity lowered about one order of magnitude, e.g., minimum value of the viscosity decreased from 3∼4×106 Pa-s for the Zr55Cu30Ni5Al10 and Zr 60Cu25Ni5Al10 BMGs down to 5∼6×105 Pa-s for the Zr65Cu20Ni 5Al10 and Zr65Cu18Ni 7Al10 BMGs under the same heating condition. Compression tests were also carried out at a slow strain rate of about 1 × 10 -4 s-1 at room temperature. With increasing Zr-content, the apparent yield stress was decreased but the total strain at fracture was increased significantly, suggesting that there is a strong relationship between viscosity and the mechanical properties in these BMGs.

AB - Viscous flow behaviour of supercooled liquids and mechanical properties in Zr55+XCu30-XNi5Al10 (X=0, 5 and 10 at. %) and Zr65Cu18Ni7Al10 bulk metallic glasses (BMGs) have been examined. Viscosity has been measured by using a penetration viscometer at a high-speed heating rate of 400 K/min. With increasing Zr-content, Tg tended to decrease and Tx tended to increase, resulting ΔTx (=Tx-Tg) increaseing up to about 170 K under a heating rate of 400 K/min by the DSC analysis. The viscosity lowered about one order of magnitude, e.g., minimum value of the viscosity decreased from 3∼4×106 Pa-s for the Zr55Cu30Ni5Al10 and Zr 60Cu25Ni5Al10 BMGs down to 5∼6×105 Pa-s for the Zr65Cu20Ni 5Al10 and Zr65Cu18Ni 7Al10 BMGs under the same heating condition. Compression tests were also carried out at a slow strain rate of about 1 × 10 -4 s-1 at room temperature. With increasing Zr-content, the apparent yield stress was decreased but the total strain at fracture was increased significantly, suggesting that there is a strong relationship between viscosity and the mechanical properties in these BMGs.

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Yamasaki T, Yamada M, Mori T, Kikuchi T, Yokoyama Y, Inoue A et al. Viscous flow behaviour of supercooled liquids and mechanical properties in Zr-Cu-Ni-Al bulk metallic glasses. In PRICM7. 2010. p. 1046-1049. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.654-656.1046