Effect of initial nanocrystal on structural stability of Ti40Zr25Ni8 Cu9Be18 amorphous alloy

Xun Zhou; Hong Chao Kou; Jie Bai; Jun Wang; Jin Shan Li; Lian Zhou

Effect of initial nanocrystal on structural stability of Ti₄₀Zr₂₅Ni₈ Cu₉Be₁₈ amorphous alloy

Xun Zhou, Hong Chao Kou, Jie Bai, Jun Wang, Jin Shan Li, Lian Zhou

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

Abstract

Ti₄₀Zr₂₅Ni₈ Cu₉Be₁₈ bulk alloy with amorphous/nanocrystalline structure was prepared by electromagnetic induce melting-injection casting. Crystallization of amporhous/nanocrystalline alloy during homogeneous deformation was investigated based on comparing with Ti₄₀Zr₂₅Ni₈ Cu₉Be₁₈ alloy with amorphous structure. The results indicate that the existence of initial nanocrystal doesn't decrease the structure stability of amporhous/nanocrystalline alloy during rheologic process in supercooled liquid region. Moreover, the activated energy of amporhous/nanocrystalline alloy is 233.21 kJ/mol, and is roughly equal to that of amorphous alloy. Avrami exponent of amporhous/nanocrystalline alloy ranges from 2 to 0.5, which is lower than that of the amorphous alloy. This indicates that the initial nanocrytal wouldn't promote crystallization.

Original language	English
Pages (from-to)	3416-3420
Number of pages	5
Journal	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
Volume	22
Issue number	12
State	Published - Dec 2012

Keywords

Amorphous/nanocrystalline alloy
Crystallization kinetics
Homogeneous deformation
Structural stability

Cite this

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title = "Effect of initial nanocrystal on structural stability of Ti40Zr25Ni8 Cu9Be18 amorphous alloy",

abstract = "Ti40Zr25Ni8 Cu9Be18 bulk alloy with amorphous/nanocrystalline structure was prepared by electromagnetic induce melting-injection casting. Crystallization of amporhous/nanocrystalline alloy during homogeneous deformation was investigated based on comparing with Ti40Zr25Ni8 Cu9Be18 alloy with amorphous structure. The results indicate that the existence of initial nanocrystal doesn't decrease the structure stability of amporhous/nanocrystalline alloy during rheologic process in supercooled liquid region. Moreover, the activated energy of amporhous/nanocrystalline alloy is 233.21 kJ/mol, and is roughly equal to that of amorphous alloy. Avrami exponent of amporhous/nanocrystalline alloy ranges from 2 to 0.5, which is lower than that of the amorphous alloy. This indicates that the initial nanocrytal wouldn't promote crystallization.",

keywords = "Amorphous/nanocrystalline alloy, Crystallization kinetics, Homogeneous deformation, Structural stability",

author = "Xun Zhou and Kou, {Hong Chao} and Jie Bai and Jun Wang and Li, {Jin Shan} and Lian Zhou",

year = "2012",

month = dec,

language = "英语",

volume = "22",

pages = "3416--3420",

journal = "Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals",

issn = "1004-0609",

publisher = "Central South University",

number = "12",

}

TY - JOUR

T1 - Effect of initial nanocrystal on structural stability of Ti40Zr25Ni8 Cu9Be18 amorphous alloy

AU - Zhou, Xun

AU - Kou, Hong Chao

AU - Bai, Jie

AU - Wang, Jun

AU - Li, Jin Shan

AU - Zhou, Lian

PY - 2012/12

Y1 - 2012/12

N2 - Ti40Zr25Ni8 Cu9Be18 bulk alloy with amorphous/nanocrystalline structure was prepared by electromagnetic induce melting-injection casting. Crystallization of amporhous/nanocrystalline alloy during homogeneous deformation was investigated based on comparing with Ti40Zr25Ni8 Cu9Be18 alloy with amorphous structure. The results indicate that the existence of initial nanocrystal doesn't decrease the structure stability of amporhous/nanocrystalline alloy during rheologic process in supercooled liquid region. Moreover, the activated energy of amporhous/nanocrystalline alloy is 233.21 kJ/mol, and is roughly equal to that of amorphous alloy. Avrami exponent of amporhous/nanocrystalline alloy ranges from 2 to 0.5, which is lower than that of the amorphous alloy. This indicates that the initial nanocrytal wouldn't promote crystallization.

AB - Ti40Zr25Ni8 Cu9Be18 bulk alloy with amorphous/nanocrystalline structure was prepared by electromagnetic induce melting-injection casting. Crystallization of amporhous/nanocrystalline alloy during homogeneous deformation was investigated based on comparing with Ti40Zr25Ni8 Cu9Be18 alloy with amorphous structure. The results indicate that the existence of initial nanocrystal doesn't decrease the structure stability of amporhous/nanocrystalline alloy during rheologic process in supercooled liquid region. Moreover, the activated energy of amporhous/nanocrystalline alloy is 233.21 kJ/mol, and is roughly equal to that of amorphous alloy. Avrami exponent of amporhous/nanocrystalline alloy ranges from 2 to 0.5, which is lower than that of the amorphous alloy. This indicates that the initial nanocrytal wouldn't promote crystallization.

KW - Amorphous/nanocrystalline alloy

KW - Crystallization kinetics

KW - Homogeneous deformation

KW - Structural stability

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M3 - 文章

AN - SCOPUS:84874544708

SN - 1004-0609

VL - 22

SP - 3416

EP - 3420

JO - Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals

JF - Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals

IS - 12

ER -

Effect of initial nanocrystal on structural stability of Ti₄₀Zr₂₅Ni₈ Cu₉Be₁₈ amorphous alloy

Abstract

Keywords

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