Fabrication of Mg-Y-Cu bulk metallic glass by mechanical alloying and hot consolidation

P.Y. Lee; W.C. Liu; C.K. Lin; J.C. Huang

doi:10.1016/j.msea.2006.02.237

Fabrication of Mg-Y-Cu bulk metallic glass by mechanical alloying and hot consolidation

P.Y. Lee^*, W.C. Liu, C.K. Lin, J.C. Huang

^*Corresponding author for this work

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

21 Citations (Scopus)

Abstract

Mg₄₅Y₁₅Cu₄₀ (numbers indicate at.%) metallic glass powders were prepared by the mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg₄₅Y₁₅Cu₄₀ amorphous powders was investigated using the differential scanning calorimeter (DSC). T_g, T_x, and ΔT_x are 456, 491, and 35 K, respectively. The as-milled Mg₄₅Y₁₅Cu₄₀ powders were then consolidated by vacuum hot pressing into disk compacts with a diameter and thickness of 10 and 1 mm, respectively. This yielded bulk Mg₄₅Y₁₅Cu₄₀ metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix. The pressure applied during consolidation can enhance thermal stability and prolong the existence of amorphous phase within Mg₄₅Y₁₅Cu₄₀ powders.

Original language	English
Pages (from-to)	1095-1098
Journal	Materials Science and Engineering A
Volume	449-451
Online published	1 Sept 2006
DOIs	https://doi.org/10.1016/j.msea.2006.02.237
Publication status	Published - 25 Mar 2007
Externally published	Yes
Event	12th International Conference on Rapidly Quenched and Metastable Materials - Jeju Island, Korea, Republic of Duration: 21 Aug 2005 → 26 Aug 2005

Research Keywords

Bulk metallic glass
Mechanical alloying
Mg-based alloys
Supercooled liquid region
Vacuum hot pressing

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@article{79f90baa70fa4a58a65d5313bd6855b7,

title = "Fabrication of Mg-Y-Cu bulk metallic glass by mechanical alloying and hot consolidation",

abstract = "Mg45Y15Cu40 (numbers indicate at.%) metallic glass powders were prepared by the mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg45Y15Cu40 amorphous powders was investigated using the differential scanning calorimeter (DSC). Tg, Tx, and ΔTx are 456, 491, and 35 K, respectively. The as-milled Mg45Y15Cu40 powders were then consolidated by vacuum hot pressing into disk compacts with a diameter and thickness of 10 and 1 mm, respectively. This yielded bulk Mg45Y15Cu40 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix. The pressure applied during consolidation can enhance thermal stability and prolong the existence of amorphous phase within Mg45Y15Cu40 powders.",

keywords = "Bulk metallic glass, Mechanical alloying, Mg-based alloys, Supercooled liquid region, Vacuum hot pressing",

author = "P.Y. Lee and W.C. Liu and C.K. Lin and J.C. Huang",

year = "2007",

month = mar,

day = "25",

doi = "10.1016/j.msea.2006.02.237",

language = "English",

volume = "449-451",

pages = "1095--1098",

journal = "Materials Science and Engineering A",

issn = "0921-5093",

publisher = "Elsevier Ltd.",

note = "12th International Conference on Rapidly Quenched and Metastable Materials ; Conference date: 21-08-2005 Through 26-08-2005",

}

TY - JOUR

T1 - Fabrication of Mg-Y-Cu bulk metallic glass by mechanical alloying and hot consolidation

AU - Lee, P.Y.

AU - Liu, W.C.

AU - Lin, C.K.

AU - Huang, J.C.

PY - 2007/3/25

Y1 - 2007/3/25

N2 - Mg45Y15Cu40 (numbers indicate at.%) metallic glass powders were prepared by the mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg45Y15Cu40 amorphous powders was investigated using the differential scanning calorimeter (DSC). Tg, Tx, and ΔTx are 456, 491, and 35 K, respectively. The as-milled Mg45Y15Cu40 powders were then consolidated by vacuum hot pressing into disk compacts with a diameter and thickness of 10 and 1 mm, respectively. This yielded bulk Mg45Y15Cu40 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix. The pressure applied during consolidation can enhance thermal stability and prolong the existence of amorphous phase within Mg45Y15Cu40 powders.

AB - Mg45Y15Cu40 (numbers indicate at.%) metallic glass powders were prepared by the mechanical alloying of pure Mg, Y, and Cu after 10 h of milling. The thermal stability of these Mg45Y15Cu40 amorphous powders was investigated using the differential scanning calorimeter (DSC). Tg, Tx, and ΔTx are 456, 491, and 35 K, respectively. The as-milled Mg45Y15Cu40 powders were then consolidated by vacuum hot pressing into disk compacts with a diameter and thickness of 10 and 1 mm, respectively. This yielded bulk Mg45Y15Cu40 metallic glass with nanocrystalline precipitates homogeneously embedded in a highly dense glassy matrix. The pressure applied during consolidation can enhance thermal stability and prolong the existence of amorphous phase within Mg45Y15Cu40 powders.

KW - Bulk metallic glass

KW - Mechanical alloying

KW - Mg-based alloys

KW - Supercooled liquid region

KW - Vacuum hot pressing

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33847188082&origin=recordpage

U2 - 10.1016/j.msea.2006.02.237

DO - 10.1016/j.msea.2006.02.237

M3 - RGC 21 - Publication in refereed journal

SN - 0921-5093

VL - 449-451

SP - 1095

EP - 1098

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

T2 - 12th International Conference on Rapidly Quenched and Metastable Materials

Y2 - 21 August 2005 through 26 August 2005

ER -

Fabrication of Mg-Y-Cu bulk metallic glass by mechanical alloying and hot consolidation

Abstract

Research Keywords

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