Direct TEM observation of phase separation and crystallization in Cu45Zr45Ag10 metallic glass

Hui Wang; Shang Gang Xiao; Tao Zhang; Qiang Xu; Zeng Qian Liu; Meng Yue Wu; Frans Tichelaar; Henny Zandbergen

doi:10.1007/s40195-016-0416-z

Direct TEM observation of phase separation and crystallization in Cu₄₅Zr₄₅Ag₁₀ metallic glass

Hui Wang^*, Shang Gang Xiao, Tao Zhang, Qiang Xu, Zeng Qian Liu, Meng Yue Wu, Frans Tichelaar, Henny Zandbergen

^*Corresponding author for this work

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

9 Citations (Scopus)

Abstract

The structural evolution of Cu₄₅Zr₄₅Ag₁₀ metallic glass was investigated by in situ transmission electron microscopy heating experiments. The relationship between phase separation and crystallization was elucidated. Nucleation and growth-controlled nanoscale phase separation at early stage were seen to impede nanocrystallization, while a coarser phase separation via aggregation of Ag-rich nanospheres was found to promote the precipitation of Cu-rich nanocrystals. Coupling of composition and dynamics heterogeneities was supposed to play a key role during phase separation preceding crystallization.

Original language	English
Pages (from-to)	538-545
Number of pages	8
Journal	Acta Metallurgica Sinica (English Letters)
Volume	29
Issue number	6
DOIs	https://doi.org/10.1007/s40195-016-0416-z
Publication status	Published - 2016

Keywords

Bulk metallic glass
Crystallization
Glass forming ability
In situ TEM heating
Phase separation

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10.1007/s40195-016-0416-z

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title = "Direct TEM observation of phase separation and crystallization in Cu45Zr45Ag10 metallic glass",

abstract = "The structural evolution of Cu45Zr45Ag10 metallic glass was investigated by in situ transmission electron microscopy heating experiments. The relationship between phase separation and crystallization was elucidated. Nucleation and growth-controlled nanoscale phase separation at early stage were seen to impede nanocrystallization, while a coarser phase separation via aggregation of Ag-rich nanospheres was found to promote the precipitation of Cu-rich nanocrystals. Coupling of composition and dynamics heterogeneities was supposed to play a key role during phase separation preceding crystallization.",

keywords = "Bulk metallic glass, Crystallization, Glass forming ability, In situ TEM heating, Phase separation",

author = "Hui Wang and Xiao, {Shang Gang} and Tao Zhang and Qiang Xu and Liu, {Zeng Qian} and Wu, {Meng Yue} and Frans Tichelaar and Henny Zandbergen",

year = "2016",

doi = "10.1007/s40195-016-0416-z",

language = "English",

volume = "29",

pages = "538--545",

journal = "Acta Metallurgica Sinica (English Letters)",

issn = "1006-7191",

publisher = "Chinese Society for Metals",

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TY - JOUR

T1 - Direct TEM observation of phase separation and crystallization in Cu45Zr45Ag10 metallic glass

AU - Wang, Hui

AU - Xiao, Shang Gang

AU - Zhang, Tao

AU - Xu, Qiang

AU - Liu, Zeng Qian

AU - Wu, Meng Yue

AU - Tichelaar, Frans

AU - Zandbergen, Henny

PY - 2016

Y1 - 2016

N2 - The structural evolution of Cu45Zr45Ag10 metallic glass was investigated by in situ transmission electron microscopy heating experiments. The relationship between phase separation and crystallization was elucidated. Nucleation and growth-controlled nanoscale phase separation at early stage were seen to impede nanocrystallization, while a coarser phase separation via aggregation of Ag-rich nanospheres was found to promote the precipitation of Cu-rich nanocrystals. Coupling of composition and dynamics heterogeneities was supposed to play a key role during phase separation preceding crystallization.

AB - The structural evolution of Cu45Zr45Ag10 metallic glass was investigated by in situ transmission electron microscopy heating experiments. The relationship between phase separation and crystallization was elucidated. Nucleation and growth-controlled nanoscale phase separation at early stage were seen to impede nanocrystallization, while a coarser phase separation via aggregation of Ag-rich nanospheres was found to promote the precipitation of Cu-rich nanocrystals. Coupling of composition and dynamics heterogeneities was supposed to play a key role during phase separation preceding crystallization.

KW - Bulk metallic glass

KW - Crystallization

KW - Glass forming ability

KW - In situ TEM heating

KW - Phase separation

UR - http://www.scopus.com/inward/record.url?scp=84969834408&partnerID=8YFLogxK

U2 - 10.1007/s40195-016-0416-z

DO - 10.1007/s40195-016-0416-z

M3 - Article

AN - SCOPUS:84969834408

SN - 1006-7191

VL - 29

SP - 538

EP - 545

JO - Acta Metallurgica Sinica (English Letters)

JF - Acta Metallurgica Sinica (English Letters)

IS - 6

ER -

Direct TEM observation of phase separation and crystallization in Cu₄₅Zr₄₅Ag₁₀ metallic glass

Abstract

Keywords

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