Consolidation of mechanically alloyed Mg49Y15Cu36 powders by vacuum hot pressing

P. Y. Lee; C. Lo; J. S.C. Jang

doi:10.1016/j.jallcom.2006.08.282

Consolidation of mechanically alloyed Mg₄₉Y₁₅Cu₃₆ powders by vacuum hot pressing

P. Y. Lee, C. Lo, J. S.C. Jang

Graduate Institute of Materials Science and Engineering

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

12 Scopus citations

Abstract

The preparation of Mg₄₉Y₁₅Cu₃₆ metallic glass powders was accomplished by mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg₄₉Y₁₅Cu₃₆ amorphous powders was investigated by differential scanning calorimeter (DSC). The T_g, T_x and ΔT_x are 450, 492, and 42 K, respectively. The as-milled Mg₄₉Y₁₅Cu₃₆ powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 10 and 1 mm, respectively. After vacuum hot pressing, bulk Mg₄₉Y₁₅Cu₃₆ metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was obtained. The applied pressure during consolidation can enhance the thermal stability and prolong the existence of amorphous phase inside Mg₄₉Y₁₅Cu₃₆ powders.

Original language	English
Pages (from-to)	354-357
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	434-435
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jallcom.2006.08.282
State	Published - 31 May 2007

Keywords

High-pressure
Mechanical alloying
Metallic glass
Thermal analysis

Access to Document

10.1016/j.jallcom.2006.08.282

Cite this

@article{bf06b889ba2b474f9608845744e4c055,

title = "Consolidation of mechanically alloyed Mg49Y15Cu36 powders by vacuum hot pressing",

abstract = "The preparation of Mg49Y15Cu36 metallic glass powders was accomplished by mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg49Y15Cu36 amorphous powders was investigated by differential scanning calorimeter (DSC). The Tg, Tx and ΔTx are 450, 492, and 42 K, respectively. The as-milled Mg49Y15Cu36 powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 10 and 1 mm, respectively. After vacuum hot pressing, bulk Mg49Y15Cu36 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was obtained. The applied pressure during consolidation can enhance the thermal stability and prolong the existence of amorphous phase inside Mg49Y15Cu36 powders.",

keywords = "High-pressure, Mechanical alloying, Metallic glass, Thermal analysis",

author = "Lee, {P. Y.} and C. Lo and Jang, {J. S.C.}",

note = "Funding Information: The authors are grateful for the financial support of this work by the National Science Council of Republic of China under Grant Nos. NSC 94-2218-E-110-009.",

year = "2007",

month = may,

day = "31",

doi = "10.1016/j.jallcom.2006.08.282",

language = "???core.languages.en_GB???",

volume = "434-435",

pages = "354--357",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

number = "SPEC. ISS.",

}

TY - JOUR

T1 - Consolidation of mechanically alloyed Mg49Y15Cu36 powders by vacuum hot pressing

AU - Lee, P. Y.

AU - Lo, C.

AU - Jang, J. S.C.

N1 - Funding Information: The authors are grateful for the financial support of this work by the National Science Council of Republic of China under Grant Nos. NSC 94-2218-E-110-009.

PY - 2007/5/31

Y1 - 2007/5/31

N2 - The preparation of Mg49Y15Cu36 metallic glass powders was accomplished by mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg49Y15Cu36 amorphous powders was investigated by differential scanning calorimeter (DSC). The Tg, Tx and ΔTx are 450, 492, and 42 K, respectively. The as-milled Mg49Y15Cu36 powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 10 and 1 mm, respectively. After vacuum hot pressing, bulk Mg49Y15Cu36 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was obtained. The applied pressure during consolidation can enhance the thermal stability and prolong the existence of amorphous phase inside Mg49Y15Cu36 powders.

AB - The preparation of Mg49Y15Cu36 metallic glass powders was accomplished by mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg49Y15Cu36 amorphous powders was investigated by differential scanning calorimeter (DSC). The Tg, Tx and ΔTx are 450, 492, and 42 K, respectively. The as-milled Mg49Y15Cu36 powders were then consolidated by vacuum hot pressing into disc compacts with a diameter and thickness of 10 and 1 mm, respectively. After vacuum hot pressing, bulk Mg49Y15Cu36 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix was obtained. The applied pressure during consolidation can enhance the thermal stability and prolong the existence of amorphous phase inside Mg49Y15Cu36 powders.

KW - High-pressure

KW - Mechanical alloying

KW - Metallic glass

KW - Thermal analysis

UR - http://www.scopus.com/inward/record.url?scp=33947596241&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2006.08.282

DO - 10.1016/j.jallcom.2006.08.282

M3 - 期刊論文

AN - SCOPUS:33947596241

SN - 0925-8388

VL - 434-435

SP - 354

EP - 357

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SPEC. ISS.

ER -