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^*

^*Corresponding author for this work

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

17 Citations (Scopus)

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.

Original language	English
Pages (from-to)	17-21
Journal	Scripta Materialia
Volume	183
Online published	18 Mar 2020
DOIs	https://doi.org/10.1016/j.scriptamat.2020.03.002
Publication status	Published - 1 Jul 2020

Research Keywords

Ductility
Metallic glass
Nanocomposite
Nanostructure
Sputtering

RGC Funding Information

RGC-funded

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10.1016/j.scriptamat.2020.03.002

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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",

year = "2020",

month = jul,

day = "1",

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

language = "English",

volume = "183",

pages = "17--21",

journal = "Scripta Materialia",

issn = "1359-6462",

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TY - JOUR

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 - http://www.scopus.com/inward/record.url?scp=85081957186&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85081957186&origin=recordpage

U2 - 10.1016/j.scriptamat.2020.03.002

DO - 10.1016/j.scriptamat.2020.03.002

M3 - RGC 21 - Publication in refereed journal

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

Abstract

Research Keywords

RGC Funding Information

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Permanent Link

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Fingerprint

Erratum to “Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron” [Scripta Materialia 183 (2020) 17–21/ SMM-20-142]

GRF: Study the Plastic Deformation Mechanism and Thermal Stability of Ultra-strong /ductile Nano-dual-phase Alloys

GRF: Study the Wear and Corrosion Resistances of Ultra-Strong /Plastic Mg-Based Supra-Nano-Dual-Phase Materials

CRF: Joint R&D of Magnesium-based Orthopaedic Implants

Cite this

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

Abstract

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Research output

Erratum to “Ductility of an ultrastrong glass-crystal nano-dual-phase alloy in sub-micron” [Scripta Materialia 183 (2020) 17–21/ SMM-20-142]

Projects

GRF: Study the Plastic Deformation Mechanism and Thermal Stability of Ultra-strong /ductile Nano-dual-phase Alloys

GRF: Study the Wear and Corrosion Resistances of Ultra-Strong /Plastic Mg-Based Supra-Nano-Dual-Phase Materials

CRF: Joint R&D of Magnesium-based Orthopaedic Implants

Cite this