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

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

The thermomechanical properties and viscous flow behaviors of the Mg ₆₅Cu_25-xAg_xGd₁₀(x =0, 3. 10 at%, 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
Journal	Materials Transactions
Volume	49
Issue number	11
Online published	3 Oct 2008
DOIs	https://doi.org/10.2320/matertrans.MRA2008172
Publication status	Published - 25 Oct 2008
Externally published	Yes

Research 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. 10 at%, 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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doi = "10.2320/matertrans.MRA2008172",

language = "English",

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journal = "Materials Transactions",

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publisher = "Japan Institute of Metals (JIM)",

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TY - JOUR

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 - 2008/10/25

Y1 - 2008/10/25

N2 - The thermomechanical properties and viscous flow behaviors of the Mg 65Cu25-xAgxGd10(x =0, 3. 10 at%, 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. 10 at%, 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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DO - 10.2320/matertrans.MRA2008172

M3 - RGC 21 - Publication in refereed journal

SN - 0916-1821

VL - 49

SP - 2605

EP - 2610

JO - Materials Transactions

JF - Materials Transactions

IS - 11

ER -

Viscous Flow Behavior and Workability of Mg-Cu-(Ag)-Gd Bulk Metallic Glasses

Abstract

Research Keywords

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