Compressive fracture characteristics of a Zr-based bulk metallic glass at high test temperatures

G. Wang; J. Shen; J. F. Sun; Z. P. Lu; Z. H. Stachurski; B. D. Zhou

doi:10.1016/j.msea.2005.03.006

Compressive fracture characteristics of a Zr-based bulk metallic glass at high test temperatures

G. Wang
, J. Shen
, J. F. Sun
, Z. P. Lu^*
, Z. H. Stachurski
, B. D. Zhou

^*Corresponding author for this work

Harbin Institute of Technology
Australian National University
Oak Ridge National Laboratory

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

32 Scopus citations

Abstract

This paper presents the fracture characteristics of Zr_41.25 Ti_13.75Ni₁₀Cu_12.5Be_22.5 bulk metallic glass (BMG) subjected to compression tests at the calorimetric glass transition temperature and in the supercooled liquid region. Under compressive load, the catastrophic fracture is not a pure shear process and the normal stress played a critical role. Based on the Mohr-Coulomb criterion, it was found that the increase in cohesive strength due to the increase of strain rates leads to the change of fracture angles from 40° to 56°. At the calorimetric glass transition temperature, the fracture characteristics are similar to those observed at room temperature, while at higher test temperatures, different fracture features including the flow layer and round cores that are regarded as the unique features for tensile fractures of BMGs, were observed.

Original language	English
Pages (from-to)	82-87
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	398
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2005.03.006
State	Published - 25 May 2005
Externally published	Yes

Keywords

Bulk metallic glass
Cohesive strength
Fracture behavior
High temperature compression

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10.1016/j.msea.2005.03.006

Cite this

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title = "Compressive fracture characteristics of a Zr-based bulk metallic glass at high test temperatures",

abstract = "This paper presents the fracture characteristics of Zr41.25 Ti13.75Ni10Cu12.5Be22.5 bulk metallic glass (BMG) subjected to compression tests at the calorimetric glass transition temperature and in the supercooled liquid region. Under compressive load, the catastrophic fracture is not a pure shear process and the normal stress played a critical role. Based on the Mohr-Coulomb criterion, it was found that the increase in cohesive strength due to the increase of strain rates leads to the change of fracture angles from 40° to 56°. At the calorimetric glass transition temperature, the fracture characteristics are similar to those observed at room temperature, while at higher test temperatures, different fracture features including the flow layer and round cores that are regarded as the unique features for tensile fractures of BMGs, were observed.",

keywords = "Bulk metallic glass, Cohesive strength, Fracture behavior, High temperature compression",

author = "G. Wang and J. Shen and Sun, \{J. F.\} and Lu, \{Z. P.\} and Stachurski, \{Z. H.\} and Zhou, \{B. D.\}",

year = "2005",

month = may,

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doi = "10.1016/j.msea.2005.03.006",

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}

TY - JOUR

T1 - Compressive fracture characteristics of a Zr-based bulk metallic glass at high test temperatures

AU - Wang, G.

AU - Shen, J.

AU - Sun, J. F.

AU - Lu, Z. P.

AU - Stachurski, Z. H.

AU - Zhou, B. D.

PY - 2005/5/25

Y1 - 2005/5/25

N2 - This paper presents the fracture characteristics of Zr41.25 Ti13.75Ni10Cu12.5Be22.5 bulk metallic glass (BMG) subjected to compression tests at the calorimetric glass transition temperature and in the supercooled liquid region. Under compressive load, the catastrophic fracture is not a pure shear process and the normal stress played a critical role. Based on the Mohr-Coulomb criterion, it was found that the increase in cohesive strength due to the increase of strain rates leads to the change of fracture angles from 40° to 56°. At the calorimetric glass transition temperature, the fracture characteristics are similar to those observed at room temperature, while at higher test temperatures, different fracture features including the flow layer and round cores that are regarded as the unique features for tensile fractures of BMGs, were observed.

AB - This paper presents the fracture characteristics of Zr41.25 Ti13.75Ni10Cu12.5Be22.5 bulk metallic glass (BMG) subjected to compression tests at the calorimetric glass transition temperature and in the supercooled liquid region. Under compressive load, the catastrophic fracture is not a pure shear process and the normal stress played a critical role. Based on the Mohr-Coulomb criterion, it was found that the increase in cohesive strength due to the increase of strain rates leads to the change of fracture angles from 40° to 56°. At the calorimetric glass transition temperature, the fracture characteristics are similar to those observed at room temperature, while at higher test temperatures, different fracture features including the flow layer and round cores that are regarded as the unique features for tensile fractures of BMGs, were observed.

KW - Bulk metallic glass

KW - Cohesive strength

KW - Fracture behavior

KW - High temperature compression

UR - https://www.scopus.com/pages/publications/18844451540

U2 - 10.1016/j.msea.2005.03.006

DO - 10.1016/j.msea.2005.03.006

M3 - 文章

AN - SCOPUS:18844451540

SN - 0921-5093

VL - 398

SP - 82

EP - 87

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Compressive fracture characteristics of a Zr-based bulk metallic glass at high test temperatures

Abstract

Keywords

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