Influence of in-situ nanoprecipitation on constant load deformation in the glass transition region of a Cu60Zr30Ti10 bulk metallic glass

Hidemi Kato; Dmitri V. Louzguine; Akihisa Inoue; Hyoung Seop Kim; Ho Sou Chen

doi:10.2320/matertrans.45.2383

Influence of in-situ nanoprecipitation on constant load deformation in the glass transition region of a Cu₆₀Zr₃₀Ti₁₀ bulk metallic glass

Hidemi Kato, Dmitri V. Louzguine, Akihisa Inoue, Hyoung Seop Kim, Ho Sou Chen

Research output: Contribution to journal › Article › peer-review

Abstract

Nonlinear viscoelasticity influenced by an in situ nanocrystallization under constant load compression at the glass transition temperature, T _g, is investigated with a Cu₆₀Zr₃₀Ti ₁₀ (at %) bulk metallic glass (BMG). The experimental curves showed the characteristics, softening and subsequent recovering phenomena which have been observed in a 'stable' Zr-based BMG and also hardening through whole deformation process due to the in situ nanoprecipitation in the glass matrix. These characteristics are fairly reproduced by the fictive stress model extended by the Johnson-Mehl-Avrami (JMA) equation and mixture rule for respectively expressing influences of the Newtonian viscosity and of Young's modulus and critical stress on volume fraction of the nanoprecipitates.

Original language	English
Pages (from-to)	2383-2388
Number of pages	6
Journal	Materials Transactions
Volume	45
Issue number	7
DOIs	https://doi.org/10.2320/matertrans.45.2383
Publication status	Published - 2004 Jul

Keywords

Bulk metallic glass
Fictive stress model
In situ nanocrystallization
Non-Newtonian flow

ASJC Scopus subject areas

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

Access to Document

10.2320/matertrans.45.2383

Cite this

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title = "Influence of in-situ nanoprecipitation on constant load deformation in the glass transition region of a Cu60Zr30Ti10 bulk metallic glass",

abstract = "Nonlinear viscoelasticity influenced by an in situ nanocrystallization under constant load compression at the glass transition temperature, T g, is investigated with a Cu60Zr30Ti 10 (at %) bulk metallic glass (BMG). The experimental curves showed the characteristics, softening and subsequent recovering phenomena which have been observed in a 'stable' Zr-based BMG and also hardening through whole deformation process due to the in situ nanoprecipitation in the glass matrix. These characteristics are fairly reproduced by the fictive stress model extended by the Johnson-Mehl-Avrami (JMA) equation and mixture rule for respectively expressing influences of the Newtonian viscosity and of Young's modulus and critical stress on volume fraction of the nanoprecipitates.",

keywords = "Bulk metallic glass, Fictive stress model, In situ nanocrystallization, Non-Newtonian flow",

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T1 - Influence of in-situ nanoprecipitation on constant load deformation in the glass transition region of a Cu60Zr30Ti10 bulk metallic glass

AU - Kato, Hidemi

AU - Louzguine, Dmitri V.

AU - Inoue, Akihisa

AU - Kim, Hyoung Seop

AU - Chen, Ho Sou

PY - 2004/7

Y1 - 2004/7

N2 - Nonlinear viscoelasticity influenced by an in situ nanocrystallization under constant load compression at the glass transition temperature, T g, is investigated with a Cu60Zr30Ti 10 (at %) bulk metallic glass (BMG). The experimental curves showed the characteristics, softening and subsequent recovering phenomena which have been observed in a 'stable' Zr-based BMG and also hardening through whole deformation process due to the in situ nanoprecipitation in the glass matrix. These characteristics are fairly reproduced by the fictive stress model extended by the Johnson-Mehl-Avrami (JMA) equation and mixture rule for respectively expressing influences of the Newtonian viscosity and of Young's modulus and critical stress on volume fraction of the nanoprecipitates.

AB - Nonlinear viscoelasticity influenced by an in situ nanocrystallization under constant load compression at the glass transition temperature, T g, is investigated with a Cu60Zr30Ti 10 (at %) bulk metallic glass (BMG). The experimental curves showed the characteristics, softening and subsequent recovering phenomena which have been observed in a 'stable' Zr-based BMG and also hardening through whole deformation process due to the in situ nanoprecipitation in the glass matrix. These characteristics are fairly reproduced by the fictive stress model extended by the Johnson-Mehl-Avrami (JMA) equation and mixture rule for respectively expressing influences of the Newtonian viscosity and of Young's modulus and critical stress on volume fraction of the nanoprecipitates.

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