Pronounced tensile plasticity at room temperature in a Au65Cu10.5Ag7.5Si17 metallic glass

J. C. Qiao; H. Wang; J. M. Pelletier; H. Kato

doi:10.1016/j.msea.2014.02.007

Pronounced tensile plasticity at room temperature in a Au₆₅Cu_10.5Ag_7.5Si₁₇ metallic glass

J. C. Qiao
, H. Wang
, J. M. Pelletier
, H. Kato

MATEIS UMR5510
Tohoku University
Institute for Materials Research, Tohoku University

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

4 Scopus citations

Abstract

We report a pronounced tensile plasticity in a Au₆₅Cu_10.5Ag_7.5Si₁₇ metallic glass at room temperature. The tensile strength of the metallic glass decreases by decreasing the strain rate. Plastic deformation is heterogeneous and many percolating shear bands are observed on the fracture surface. In parallel, dynamic mechanical analysis indicates the absence of a pronounced secondary (or β) relaxation. Therefore, no correlation is observed between the relaxation behavior and the tensile plasticity.

Original language	English
Pages (from-to)	32-36
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	600
DOIs	https://doi.org/10.1016/j.msea.2014.02.007
State	Published - 10 Apr 2014
Externally published	Yes

Keywords

Bulk amorphous alloys
Shear bands
Superplasticity

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10.1016/j.msea.2014.02.007

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title = "Pronounced tensile plasticity at room temperature in a Au65Cu10.5Ag7.5Si17 metallic glass",

abstract = "We report a pronounced tensile plasticity in a Au65Cu10.5Ag7.5Si17 metallic glass at room temperature. The tensile strength of the metallic glass decreases by decreasing the strain rate. Plastic deformation is heterogeneous and many percolating shear bands are observed on the fracture surface. In parallel, dynamic mechanical analysis indicates the absence of a pronounced secondary (or β) relaxation. Therefore, no correlation is observed between the relaxation behavior and the tensile plasticity.",

keywords = "Bulk amorphous alloys, Shear bands, Superplasticity",

author = "Qiao, \{J. C.\} and H. Wang and Pelletier, \{J. M.\} and H. Kato",

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journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Pronounced tensile plasticity at room temperature in a Au65Cu10.5Ag7.5Si17 metallic glass

AU - Qiao, J. C.

AU - Wang, H.

AU - Pelletier, J. M.

AU - Kato, H.

PY - 2014/4/10

Y1 - 2014/4/10

N2 - We report a pronounced tensile plasticity in a Au65Cu10.5Ag7.5Si17 metallic glass at room temperature. The tensile strength of the metallic glass decreases by decreasing the strain rate. Plastic deformation is heterogeneous and many percolating shear bands are observed on the fracture surface. In parallel, dynamic mechanical analysis indicates the absence of a pronounced secondary (or β) relaxation. Therefore, no correlation is observed between the relaxation behavior and the tensile plasticity.

AB - We report a pronounced tensile plasticity in a Au65Cu10.5Ag7.5Si17 metallic glass at room temperature. The tensile strength of the metallic glass decreases by decreasing the strain rate. Plastic deformation is heterogeneous and many percolating shear bands are observed on the fracture surface. In parallel, dynamic mechanical analysis indicates the absence of a pronounced secondary (or β) relaxation. Therefore, no correlation is observed between the relaxation behavior and the tensile plasticity.

KW - Bulk amorphous alloys

KW - Shear bands

KW - Superplasticity

UR - https://www.scopus.com/pages/publications/84894240602

U2 - 10.1016/j.msea.2014.02.007

DO - 10.1016/j.msea.2014.02.007

M3 - 文章

AN - SCOPUS:84894240602

SN - 0921-5093

VL - 600

SP - 32

EP - 36

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Pronounced tensile plasticity at room temperature in a Au₆₅Cu_10.5Ag_7.5Si₁₇ metallic glass

Abstract

Keywords

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