Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron

Ge Wu; Jiayong Zhang; Chang Liu; Qing Wang; Jian Lu

doi:10.1016/j.scriptamat.2020.03.002

Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron

Ge Wu
, Jiayong Zhang
, Chang Liu
, Qing Wang
, Jian Lu

City University of Hong Kong
Max Planck Institute for Iron Research
Dalian University of Technology
Shanghai University
City University of Hong Kong Shenzhen Research Institute

科研成果: 期刊稿件 › 文章 › 同行评审

17 引用（Scopus）

摘要

We report an excellent tensile property of the Mg-based nano-dual-phase glass-crystal alloy in sub-micro size. It shows room temperature large ductility (>50% true strain, resulted from the localized necking deformation) with ultrahigh tensile strength (2.4 GPa), compared with 1.4 GPa strength and limited ductility of its metallic glass counterpart. To unraveling the underlying reasons, we have made transmission electron microscope (TEM) in-situ tensile investigation and molecular dynamic (MD) simulation for the materials, showing that homogenous plastic flow of nano-sized metallic glass phase activated by strain non-localization mechanism is responsible for the large ductility.

源语言	英语
页（从-至）	17-21
页数	5
期刊	Scripta Materialia
卷	183
DOI	https://doi.org/10.1016/j.scriptamat.2020.03.002
出版状态	已出版 - 1 7月 2020
已对外发布	是

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title = "Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron",

abstract = "We report an excellent tensile property of the Mg-based nano-dual-phase glass-crystal alloy in sub-micro size. It shows room temperature large ductility (>50\% true strain, resulted from the localized necking deformation) with ultrahigh tensile strength (2.4 GPa), compared with 1.4 GPa strength and limited ductility of its metallic glass counterpart. To unraveling the underlying reasons, we have made transmission electron microscope (TEM) in-situ tensile investigation and molecular dynamic (MD) simulation for the materials, showing that homogenous plastic flow of nano-sized metallic glass phase activated by strain non-localization mechanism is responsible for the large ductility.",

keywords = "Ductility, Metallic glass, Nanocomposite, Nanostructure, Sputtering",

author = "Ge Wu and Jiayong Zhang and Chang Liu and Qing Wang and Jian Lu",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = jul,

day = "1",

doi = "10.1016/j.scriptamat.2020.03.002",

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T1 - Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron

AU - Wu, Ge

AU - Zhang, Jiayong

AU - Liu, Chang

AU - Wang, Qing

AU - Lu, Jian

PY - 2020/7/1

Y1 - 2020/7/1

N2 - We report an excellent tensile property of the Mg-based nano-dual-phase glass-crystal alloy in sub-micro size. It shows room temperature large ductility (>50% true strain, resulted from the localized necking deformation) with ultrahigh tensile strength (2.4 GPa), compared with 1.4 GPa strength and limited ductility of its metallic glass counterpart. To unraveling the underlying reasons, we have made transmission electron microscope (TEM) in-situ tensile investigation and molecular dynamic (MD) simulation for the materials, showing that homogenous plastic flow of nano-sized metallic glass phase activated by strain non-localization mechanism is responsible for the large ductility.

AB - We report an excellent tensile property of the Mg-based nano-dual-phase glass-crystal alloy in sub-micro size. It shows room temperature large ductility (>50% true strain, resulted from the localized necking deformation) with ultrahigh tensile strength (2.4 GPa), compared with 1.4 GPa strength and limited ductility of its metallic glass counterpart. To unraveling the underlying reasons, we have made transmission electron microscope (TEM) in-situ tensile investigation and molecular dynamic (MD) simulation for the materials, showing that homogenous plastic flow of nano-sized metallic glass phase activated by strain non-localization mechanism is responsible for the large ductility.

KW - Ductility

KW - Metallic glass

KW - Nanocomposite

KW - Nanostructure

KW - Sputtering

UR - https://www.scopus.com/pages/publications/85081957186

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DO - 10.1016/j.scriptamat.2020.03.002

M3 - 文章

AN - SCOPUS:85081957186

SN - 1359-6462

VL - 183

SP - 17

EP - 21

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron

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