Temperature-induced anomalous brittle-to-ductile transition of bulk metallic glasses

D. Pan; H. Guo; W. Zhang; A. Inoue; M. W. Chen

doi:10.1063/1.3669508

Temperature-induced anomalous brittle-to-ductile transition of bulk metallic glasses

D. Pan, H. Guo, W. Zhang, A. Inoue, M. W. Chen

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

16 Citations (Scopus)

Abstract

We report an anomalous brittle-to-ductile transition (BTDT) in Au-based bulk metallic glasses (BMGs). Despite of brittle failure without noticeable plastic strain under uniaxial compression at room temperature, the Au-based BMGs exhibit remarkable plasticity at cryogenic temperatures, which is opposite to the BTDT in crystalline materials. This anomalous transition originates from the strong temperature dependence of the fundamental deformation units, viz. shear transformation zones, giving rise to both superior plasticity and high strength of BMGs for low-temperature applications.

Original language	English
Article number	241907
Journal	Applied Physics Letters
Volume	99
Issue number	24
DOIs	https://doi.org/10.1063/1.3669508
Publication status	Published - 2011 Dec 12

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3669508

Fingerprint Dive into the research topics of 'Temperature-induced anomalous brittle-to-ductile transition of bulk metallic glasses'. Together they form a unique fingerprint.

Cite this

@article{6a52d18b89f8487ebefee617db9132f4,

title = "Temperature-induced anomalous brittle-to-ductile transition of bulk metallic glasses",

abstract = "We report an anomalous brittle-to-ductile transition (BTDT) in Au-based bulk metallic glasses (BMGs). Despite of brittle failure without noticeable plastic strain under uniaxial compression at room temperature, the Au-based BMGs exhibit remarkable plasticity at cryogenic temperatures, which is opposite to the BTDT in crystalline materials. This anomalous transition originates from the strong temperature dependence of the fundamental deformation units, viz. shear transformation zones, giving rise to both superior plasticity and high strength of BMGs for low-temperature applications.",

author = "D. Pan and H. Guo and W. Zhang and A. Inoue and Chen, {M. W.}",

note = "Funding Information: The work is sponsored by Global COE Program “Materials Education and Research”, MEXT, Japan. D.P. thanks Shanghai {\textquoteleft}Oriental Scholar{\textquoteright} Project and Shanghai key laboratory of digital auto body engineering.",

year = "2011",

month = dec,

day = "12",

doi = "10.1063/1.3669508",

language = "English",

volume = "99",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "24",

}

TY - JOUR

T1 - Temperature-induced anomalous brittle-to-ductile transition of bulk metallic glasses

AU - Pan, D.

AU - Guo, H.

AU - Zhang, W.

AU - Inoue, A.

AU - Chen, M. W.

N1 - Funding Information: The work is sponsored by Global COE Program “Materials Education and Research”, MEXT, Japan. D.P. thanks Shanghai ‘Oriental Scholar’ Project and Shanghai key laboratory of digital auto body engineering.

PY - 2011/12/12

Y1 - 2011/12/12

N2 - We report an anomalous brittle-to-ductile transition (BTDT) in Au-based bulk metallic glasses (BMGs). Despite of brittle failure without noticeable plastic strain under uniaxial compression at room temperature, the Au-based BMGs exhibit remarkable plasticity at cryogenic temperatures, which is opposite to the BTDT in crystalline materials. This anomalous transition originates from the strong temperature dependence of the fundamental deformation units, viz. shear transformation zones, giving rise to both superior plasticity and high strength of BMGs for low-temperature applications.

AB - We report an anomalous brittle-to-ductile transition (BTDT) in Au-based bulk metallic glasses (BMGs). Despite of brittle failure without noticeable plastic strain under uniaxial compression at room temperature, the Au-based BMGs exhibit remarkable plasticity at cryogenic temperatures, which is opposite to the BTDT in crystalline materials. This anomalous transition originates from the strong temperature dependence of the fundamental deformation units, viz. shear transformation zones, giving rise to both superior plasticity and high strength of BMGs for low-temperature applications.

UR - http://www.scopus.com/inward/record.url?scp=83755173336&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=83755173336&partnerID=8YFLogxK

U2 - 10.1063/1.3669508

DO - 10.1063/1.3669508

M3 - Article

AN - SCOPUS:83755173336

VL - 99

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 24

M1 - 241907

ER -

Temperature-induced anomalous brittle-to-ductile transition of bulk metallic glasses

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this