Hot workability of the Mg65Cu20Y10Ag5 amorphous/ nanoZrO2 composite alloy within supercooled temperature region

L. J. Chang; G. R. Fang; J. S.C. Jang; I. S. Lee; J. C. Huang; Chi Y.A. Tsao

doi:10.4028/0-87849-451-0.103

Hot workability of the Mg65Cu20Y10Ag5 amorphous/ nanoZrO2 composite alloy within supercooled temperature region

L. J. Chang, G. R. Fang, J. S.C. Jang, I. S. Lee, J. C. Huang, Chi Y.A. Tsao

Graduate Institute of Materials Science and Engineering

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

1 Scopus citations

Abstract

Mg65Cu20Y10Ag5 Amorphous/ nano ZrO2 composites alloy powder were fabricated through the combination method of melt spinning and mechanical alloying (MA). The melt spun amorphous matrix ribbons are ground into powders and mixed with 3 vol.% ZrO2 nano particles in the planetary mill. After then formed by hot pressing in Ar atmosphere under the pressure of 700 MPa at the temperature of soft point which measured by TMA (Thermal mechanical Analysis). The hot-pressed bulk composite specimens are compression tested at different temperature within the supercooled temperature region. The flow stress was found decrease with increasing temperature dramatically when the temperature exceeds the middle temperature of supercooled region. The specimens after compression test were examined by X-ray diffractometry and SEM to investigate its crystallinity and fracture mechanism.

Original language	English
Pages (from-to)	103-108
Number of pages	6
Journal	Key Engineering Materials
Volume	351
DOIs	https://doi.org/10.4028/0-87849-451-0.103
State	Published - 2007

Keywords

Amorphous alloy
Magnesium alloy
Mechanical alloying
Microstructure of interface
Nano-composite

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10.4028/0-87849-451-0.103

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title = "Hot workability of the Mg65Cu20Y10Ag5 amorphous/ nanoZrO2 composite alloy within supercooled temperature region",

abstract = "Mg65Cu20Y10Ag5 Amorphous/ nano ZrO2 composites alloy powder were fabricated through the combination method of melt spinning and mechanical alloying (MA). The melt spun amorphous matrix ribbons are ground into powders and mixed with 3 vol.% ZrO2 nano particles in the planetary mill. After then formed by hot pressing in Ar atmosphere under the pressure of 700 MPa at the temperature of soft point which measured by TMA (Thermal mechanical Analysis). The hot-pressed bulk composite specimens are compression tested at different temperature within the supercooled temperature region. The flow stress was found decrease with increasing temperature dramatically when the temperature exceeds the middle temperature of supercooled region. The specimens after compression test were examined by X-ray diffractometry and SEM to investigate its crystallinity and fracture mechanism.",

keywords = "Amorphous alloy, Magnesium alloy, Mechanical alloying, Microstructure of interface, Nano-composite",

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T1 - Hot workability of the Mg65Cu20Y10Ag5 amorphous/ nanoZrO2 composite alloy within supercooled temperature region

AU - Chang, L. J.

AU - Fang, G. R.

AU - Jang, J. S.C.

AU - Lee, I. S.

AU - Huang, J. C.

AU - Tsao, Chi Y.A.

PY - 2007

Y1 - 2007

N2 - Mg65Cu20Y10Ag5 Amorphous/ nano ZrO2 composites alloy powder were fabricated through the combination method of melt spinning and mechanical alloying (MA). The melt spun amorphous matrix ribbons are ground into powders and mixed with 3 vol.% ZrO2 nano particles in the planetary mill. After then formed by hot pressing in Ar atmosphere under the pressure of 700 MPa at the temperature of soft point which measured by TMA (Thermal mechanical Analysis). The hot-pressed bulk composite specimens are compression tested at different temperature within the supercooled temperature region. The flow stress was found decrease with increasing temperature dramatically when the temperature exceeds the middle temperature of supercooled region. The specimens after compression test were examined by X-ray diffractometry and SEM to investigate its crystallinity and fracture mechanism.

AB - Mg65Cu20Y10Ag5 Amorphous/ nano ZrO2 composites alloy powder were fabricated through the combination method of melt spinning and mechanical alloying (MA). The melt spun amorphous matrix ribbons are ground into powders and mixed with 3 vol.% ZrO2 nano particles in the planetary mill. After then formed by hot pressing in Ar atmosphere under the pressure of 700 MPa at the temperature of soft point which measured by TMA (Thermal mechanical Analysis). The hot-pressed bulk composite specimens are compression tested at different temperature within the supercooled temperature region. The flow stress was found decrease with increasing temperature dramatically when the temperature exceeds the middle temperature of supercooled region. The specimens after compression test were examined by X-ray diffractometry and SEM to investigate its crystallinity and fracture mechanism.

KW - Amorphous alloy

KW - Magnesium alloy

KW - Mechanical alloying

KW - Microstructure of interface

KW - Nano-composite

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Hot workability of the Mg65Cu20Y10Ag5 amorphous/ nanoZrO2 composite alloy within supercooled temperature region

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Keywords

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