Effects of preannealing under pressure on the crystallization behavior and thermal stability of Gd36La20Al24Co20 bulk metallic glass

Tong Liu; Yarong Zhu; Tongwen Zhang; Tao Zhang

doi:10.3724/SP.J.1037.2011.00001

Effects of preannealing under pressure on the crystallization behavior and thermal stability of Gd₃₆La₂₀Al₂₄Co₂₀ bulk metallic glass

Tong Liu
, Yarong Zhu
, Tongwen Zhang^*
, Tao Zhang^*

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

Abstract

Gd₃₆La₂₀Al₂₄Co₂₀ bulk metallic glass (BMG) was prepared by copper-mold casting. The crystallization behavior and thermal stability of Gd₃₆La₂₀Al₂₄Co₂₀ during annealing under two temperatures in supercooled liquid region and the pressures ranging from ambient pressure to 725 MPa were investigated by XRD and DSC. High pressure was found to retard the crystallization of Gd₃₆La₂₀Al₂₄Co₂₀ BMGs. The apparent activation energy of the crystallization, E, determined by Kissinger equation increases with increasing applied pressure. The relative mechanisms were analyzed appropriately.

Original language	English
Pages (from-to)	502-506
Number of pages	5
Journal	Jinshu Xuebao/Acta Metallurgica Sinica
Volume	47
Issue number	4
DOIs	https://doi.org/10.3724/SP.J.1037.2011.00001
State	Published - Apr 2011

Keywords

Bulk metallic glass
Crystallization behavior
Preannealing under pressure
Thermal stability

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10.3724/SP.J.1037.2011.00001

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title = "Effects of preannealing under pressure on the crystallization behavior and thermal stability of Gd36La20Al24Co20 bulk metallic glass",

abstract = "Gd36La20Al24Co20 bulk metallic glass (BMG) was prepared by copper-mold casting. The crystallization behavior and thermal stability of Gd36La20Al24Co20 during annealing under two temperatures in supercooled liquid region and the pressures ranging from ambient pressure to 725 MPa were investigated by XRD and DSC. High pressure was found to retard the crystallization of Gd36La20Al24Co20 BMGs. The apparent activation energy of the crystallization, E, determined by Kissinger equation increases with increasing applied pressure. The relative mechanisms were analyzed appropriately.",

keywords = "Bulk metallic glass, Crystallization behavior, Preannealing under pressure, Thermal stability",

author = "Tong Liu and Yarong Zhu and Tongwen Zhang and Tao Zhang",

year = "2011",

month = apr,

doi = "10.3724/SP.J.1037.2011.00001",

language = "英语",

volume = "47",

pages = "502--506",

journal = "Jinshu Xuebao/Acta Metallurgica Sinica",

issn = "0412-1961",

publisher = "Chinese Academy of Sciences",

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TY - JOUR

T1 - Effects of preannealing under pressure on the crystallization behavior and thermal stability of Gd36La20Al24Co20 bulk metallic glass

AU - Liu, Tong

AU - Zhu, Yarong

AU - Zhang, Tongwen

AU - Zhang, Tao

PY - 2011/4

Y1 - 2011/4

N2 - Gd36La20Al24Co20 bulk metallic glass (BMG) was prepared by copper-mold casting. The crystallization behavior and thermal stability of Gd36La20Al24Co20 during annealing under two temperatures in supercooled liquid region and the pressures ranging from ambient pressure to 725 MPa were investigated by XRD and DSC. High pressure was found to retard the crystallization of Gd36La20Al24Co20 BMGs. The apparent activation energy of the crystallization, E, determined by Kissinger equation increases with increasing applied pressure. The relative mechanisms were analyzed appropriately.

AB - Gd36La20Al24Co20 bulk metallic glass (BMG) was prepared by copper-mold casting. The crystallization behavior and thermal stability of Gd36La20Al24Co20 during annealing under two temperatures in supercooled liquid region and the pressures ranging from ambient pressure to 725 MPa were investigated by XRD and DSC. High pressure was found to retard the crystallization of Gd36La20Al24Co20 BMGs. The apparent activation energy of the crystallization, E, determined by Kissinger equation increases with increasing applied pressure. The relative mechanisms were analyzed appropriately.

KW - Bulk metallic glass

KW - Crystallization behavior

KW - Preannealing under pressure

KW - Thermal stability

UR - https://www.scopus.com/pages/publications/79956301356

U2 - 10.3724/SP.J.1037.2011.00001

DO - 10.3724/SP.J.1037.2011.00001

M3 - 文章

AN - SCOPUS:79956301356

SN - 0412-1961

VL - 47

SP - 502

EP - 506

JO - Jinshu Xuebao/Acta Metallurgica Sinica

JF - Jinshu Xuebao/Acta Metallurgica Sinica

IS - 4

ER -

Effects of preannealing under pressure on the crystallization behavior and thermal stability of Gd₃₆La₂₀Al₂₄Co₂₀ bulk metallic glass

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Keywords

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