Viscous flow behavior and workability of Mg-Cu-(Ag)-Gd bulk metallic glasses

Y. C. Chang; J. C. Huang; C. W. Tang; C. I. Chang; J. S.C. Jang

doi:10.2320/matertrans.MRA2008172

Viscous flow behavior and workability of Mg-Cu-(Ag)-Gd bulk metallic glasses

Y. C. Chang, J. C. Huang, C. W. Tang, C. I. Chang, J. S.C. Jang

Graduate Institute of Materials Science and Engineering

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

10 Scopus citations

Abstract

The thermomechanical properties and viscous flow behaviors of the Mg ₆₅Cu_25-xAg_xGd₁₀(x =0, 3. 10at%, namely, Mg₆₅Cu₂₅Gd₁₀, Mg₆₅Cu ₂₂Ag₃Gd₁₀, and Mg₆₅Cu ₁₅Ag₁₀Gd₁₀ bulk metallic glasses in the supercooled viscous region under the loading condition were investigated using the thermomechanical analyzer. In this study, the supercooled viscous temperature windows, the minimum viscosity, the fragility parameter, and the deformability parameter would all be degraded with increasing Ag addition, leading to the negative factors for the micro-forming and nano-imprinting practices. The base Mg₆₅Cu₂₅Gd₁₀) alloy appears to be more promising than the Ag containing alloys when the viscous forming is under consideration.

Original language	English
Pages (from-to)	2605-2610
Number of pages	6
Journal	Materials Transactions
Volume	49
Issue number	11
DOIs	https://doi.org/10.2320/matertrans.MRA2008172
State	Published - Nov 2008

Keywords

High temperature deformation
Magnesium alloys
Metallic glasses
Viscosity

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title = "Viscous flow behavior and workability of Mg-Cu-(Ag)-Gd bulk metallic glasses",

abstract = "The thermomechanical properties and viscous flow behaviors of the Mg 65Cu25-xAgxGd10(x =0, 3. 10at%, namely, Mg65Cu25Gd10, Mg65Cu 22Ag3Gd10, and Mg65Cu 15Ag10Gd10 bulk metallic glasses in the supercooled viscous region under the loading condition were investigated using the thermomechanical analyzer. In this study, the supercooled viscous temperature windows, the minimum viscosity, the fragility parameter, and the deformability parameter would all be degraded with increasing Ag addition, leading to the negative factors for the micro-forming and nano-imprinting practices. The base Mg65Cu25Gd10) alloy appears to be more promising than the Ag containing alloys when the viscous forming is under consideration.",

keywords = "High temperature deformation, Magnesium alloys, Metallic glasses, Viscosity",

author = "Chang, {Y. C.} and Huang, {J. C.} and Tang, {C. W.} and Chang, {C. I.} and Jang, {J. S.C.}",

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T1 - Viscous flow behavior and workability of Mg-Cu-(Ag)-Gd bulk metallic glasses

AU - Chang, Y. C.

AU - Huang, J. C.

AU - Tang, C. W.

AU - Chang, C. I.

AU - Jang, J. S.C.

PY - 2008/11

Y1 - 2008/11

N2 - The thermomechanical properties and viscous flow behaviors of the Mg 65Cu25-xAgxGd10(x =0, 3. 10at%, namely, Mg65Cu25Gd10, Mg65Cu 22Ag3Gd10, and Mg65Cu 15Ag10Gd10 bulk metallic glasses in the supercooled viscous region under the loading condition were investigated using the thermomechanical analyzer. In this study, the supercooled viscous temperature windows, the minimum viscosity, the fragility parameter, and the deformability parameter would all be degraded with increasing Ag addition, leading to the negative factors for the micro-forming and nano-imprinting practices. The base Mg65Cu25Gd10) alloy appears to be more promising than the Ag containing alloys when the viscous forming is under consideration.

AB - The thermomechanical properties and viscous flow behaviors of the Mg 65Cu25-xAgxGd10(x =0, 3. 10at%, namely, Mg65Cu25Gd10, Mg65Cu 22Ag3Gd10, and Mg65Cu 15Ag10Gd10 bulk metallic glasses in the supercooled viscous region under the loading condition were investigated using the thermomechanical analyzer. In this study, the supercooled viscous temperature windows, the minimum viscosity, the fragility parameter, and the deformability parameter would all be degraded with increasing Ag addition, leading to the negative factors for the micro-forming and nano-imprinting practices. The base Mg65Cu25Gd10) alloy appears to be more promising than the Ag containing alloys when the viscous forming is under consideration.

KW - High temperature deformation

KW - Magnesium alloys

KW - Metallic glasses

KW - Viscosity

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JF - Materials Transactions

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Viscous flow behavior and workability of Mg-Cu-(Ag)-Gd bulk metallic glasses

Abstract

Keywords

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