Preparation of Mg-Y-Cu bulk metallic glass by high energy rail milling

P. Y. Lee; M. C. Kao; C. K. Lin

doi:10.4028/www.scientific.net/JMNM.24-25.97

Preparation of Mg-Y-Cu bulk metallic glass by high energy rail milling

P. Y. Lee, M. C. Kao, C. K. Lin

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

Abstract

We have studied the amorphization behavior of Mg_85-xY ₁₅Cu_x (x=20~40) alloy powders synthesized by high energy ball milling technique. The as-milled powders were mainly amorphous after 1 0 hours of milling. The thermal stability o f these Mg_85-xYi ₁₅Cu_x glassy powders was investigated by differential scanning calorimeter (DSC). The ranges of T_g ,T_x and ΔT_X are around 430-459K, 467-497K, and 30-46K, respectively. Mg₆₁Y₁₅Cu₂₄bulk metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was successfully prepared by vacuum hot pressing. It was found that the applied pressure during consolidation could enhance the thermal stability and prolong the existence of amorphous phase inside Mg₆₁Y ₁₅Cu₂₄ powders.

Original language	English
Pages (from-to)	97-100
Number of pages	4
Journal	Journal of Metastable and Nanocrystalline Materials
Volume	24-25
DOIs	https://doi.org/10.4028/www.scientific.net/JMNM.24-25.97
Publication status	Published - 2005
Externally published	Yes

Keywords

Bulk metallic glass
Mechanical a lloying
Supercooled liquid region
Vacuum hot pressing

ASJC Scopus subject areas

Materials Science (miscellaneous)
General Materials Science
Condensed Matter Physics
Physical and Theoretical Chemistry

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Cite this

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title = "Preparation of Mg-Y-Cu bulk metallic glass by high energy rail milling",

abstract = "We have studied the amorphization behavior of Mg85-xY 15Cux (x=20~40) alloy powders synthesized by high energy ball milling technique. The as-milled powders were mainly amorphous after 1 0 hours of milling. The thermal stability o f these Mg85-xYi 15Cux glassy powders was investigated by differential scanning calorimeter (DSC). The ranges of Tg ,Tx and ΔTX are around 430-459K, 467-497K, and 30-46K, respectively. Mg61Y15Cu24bulk metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was successfully prepared by vacuum hot pressing. It was found that the applied pressure during consolidation could enhance the thermal stability and prolong the existence of amorphous phase inside Mg61Y 15Cu24 powders.",

keywords = "Bulk metallic glass, Mechanical a lloying, Supercooled liquid region, Vacuum hot pressing",

author = "Lee, {P. Y.} and Kao, {M. C.} and Lin, {C. K.}",

year = "2005",

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language = "English",

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journal = "Journal of Metastable and Nanocrystalline Materials",

issn = "1422-6375",

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TY - JOUR

T1 - Preparation of Mg-Y-Cu bulk metallic glass by high energy rail milling

AU - Lee, P. Y.

AU - Kao, M. C.

AU - Lin, C. K.

PY - 2005

Y1 - 2005

N2 - We have studied the amorphization behavior of Mg85-xY 15Cux (x=20~40) alloy powders synthesized by high energy ball milling technique. The as-milled powders were mainly amorphous after 1 0 hours of milling. The thermal stability o f these Mg85-xYi 15Cux glassy powders was investigated by differential scanning calorimeter (DSC). The ranges of Tg ,Tx and ΔTX are around 430-459K, 467-497K, and 30-46K, respectively. Mg61Y15Cu24bulk metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was successfully prepared by vacuum hot pressing. It was found that the applied pressure during consolidation could enhance the thermal stability and prolong the existence of amorphous phase inside Mg61Y 15Cu24 powders.

AB - We have studied the amorphization behavior of Mg85-xY 15Cux (x=20~40) alloy powders synthesized by high energy ball milling technique. The as-milled powders were mainly amorphous after 1 0 hours of milling. The thermal stability o f these Mg85-xYi 15Cux glassy powders was investigated by differential scanning calorimeter (DSC). The ranges of Tg ,Tx and ΔTX are around 430-459K, 467-497K, and 30-46K, respectively. Mg61Y15Cu24bulk metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was successfully prepared by vacuum hot pressing. It was found that the applied pressure during consolidation could enhance the thermal stability and prolong the existence of amorphous phase inside Mg61Y 15Cu24 powders.

KW - Bulk metallic glass

KW - Mechanical a lloying

KW - Supercooled liquid region

KW - Vacuum hot pressing

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Preparation of Mg-Y-Cu bulk metallic glass by high energy rail milling

Abstract

Keywords

ASJC Scopus subject areas

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