Elastic modulus change and its relation with glass-forming ability and plasticity in bulk metallic glasses

Ming Yang; Xiongjun Liu; Yuan Wu; Hui Wang; Jianbiao Wang; Haihui Ruan; Zhaoping Lu

doi:10.1016/j.scriptamat.2018.10.006

Elastic modulus change and its relation with glass-forming ability and plasticity in bulk metallic glasses

Ming Yang, Xiongjun Liu, Yuan Wu, Hui Wang, Jianbiao Wang, Haihui Ruan, Zhaoping Lu

Research output: Journal article publication › Journal article › Academic research › peer-review

8 Citations (Scopus)

Abstract

In this work, we revealed the intrinsic relation between the modulus change upon heating and macroscopic properties such as glass-forming ability (GFA) and room-temperature plasticity in various metallic glasses. Specifically, GFA and plasticity can respectively be related to the softening rate right above the glass transition temperature (T_g) and the degree of sub-T_g relaxation. These relations can be understood in terms of the unified picture of potential energy barrier crossing. Above T_g, the faster barrier crossing leads to the larger softening rate and the higher tendency of crystallization; below T_g, the easier local rearrangement brings about the larger plasticity.

Original language	English
Pages (from-to)	62-65
Number of pages	4
Journal	Scripta Materialia
Volume	161
DOIs	https://doi.org/10.1016/j.scriptamat.2018.10.006
Publication status	Published - 1 Mar 2019

Keywords

Atomic relaxation
Metallic glasses
Modulus change
Room-temperature plasticity
Softening rate

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

More information

10.1016/j.scriptamat.2018.10.006

http://hdl.handle.net/10397/94260

Cite this

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title = "Elastic modulus change and its relation with glass-forming ability and plasticity in bulk metallic glasses",

abstract = "In this work, we revealed the intrinsic relation between the modulus change upon heating and macroscopic properties such as glass-forming ability (GFA) and room-temperature plasticity in various metallic glasses. Specifically, GFA and plasticity can respectively be related to the softening rate right above the glass transition temperature (Tg) and the degree of sub-Tg relaxation. These relations can be understood in terms of the unified picture of potential energy barrier crossing. Above Tg, the faster barrier crossing leads to the larger softening rate and the higher tendency of crystallization; below Tg, the easier local rearrangement brings about the larger plasticity.",

keywords = "Atomic relaxation, Metallic glasses, Modulus change, Room-temperature plasticity, Softening rate",

author = "Ming Yang and Xiongjun Liu and Yuan Wu and Hui Wang and Jianbiao Wang and Haihui Ruan and Zhaoping Lu",

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T1 - Elastic modulus change and its relation with glass-forming ability and plasticity in bulk metallic glasses

AU - Yang, Ming

AU - Liu, Xiongjun

AU - Wu, Yuan

AU - Wang, Hui

AU - Wang, Jianbiao

AU - Ruan, Haihui

AU - Lu, Zhaoping

PY - 2019/3/1

Y1 - 2019/3/1

N2 - In this work, we revealed the intrinsic relation between the modulus change upon heating and macroscopic properties such as glass-forming ability (GFA) and room-temperature plasticity in various metallic glasses. Specifically, GFA and plasticity can respectively be related to the softening rate right above the glass transition temperature (Tg) and the degree of sub-Tg relaxation. These relations can be understood in terms of the unified picture of potential energy barrier crossing. Above Tg, the faster barrier crossing leads to the larger softening rate and the higher tendency of crystallization; below Tg, the easier local rearrangement brings about the larger plasticity.

AB - In this work, we revealed the intrinsic relation between the modulus change upon heating and macroscopic properties such as glass-forming ability (GFA) and room-temperature plasticity in various metallic glasses. Specifically, GFA and plasticity can respectively be related to the softening rate right above the glass transition temperature (Tg) and the degree of sub-Tg relaxation. These relations can be understood in terms of the unified picture of potential energy barrier crossing. Above Tg, the faster barrier crossing leads to the larger softening rate and the higher tendency of crystallization; below Tg, the easier local rearrangement brings about the larger plasticity.

KW - Atomic relaxation

KW - Metallic glasses

KW - Modulus change

KW - Room-temperature plasticity

KW - Softening rate

UR - http://www.scopus.com/inward/record.url?scp=85055048229&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2018.10.006

DO - 10.1016/j.scriptamat.2018.10.006

M3 - Journal article

AN - SCOPUS:85055048229

SN - 1359-6462

VL - 161

SP - 62

EP - 65

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Elastic modulus change and its relation with glass-forming ability and plasticity in bulk metallic glasses

Abstract

Keywords

ASJC Scopus subject areas

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