Tensile fracture characteristics and deformation behavior of a Zr-based bulk metallic glass at high temperatures

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

doi:10.1016/j.intermet.2004.10.011

Tensile fracture characteristics and deformation behavior of a Zr-based bulk metallic glass at high temperatures

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

^*Corresponding author for this work

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

37 Citations (Scopus)

Abstract

The fracture characteristics of the Zr_41.25Ti _13.75Ni₁₀Cu_12.5Be_22.5 (at.%) bulk metallic glass subjected to tensile tests at room temperature, the calorimetric glass transition temperature, and in the supercooled liquid region have been studied. The fracture behavior at high temperatures under tension deformation can be classified as three modes, i.e. brittle fracture, necking fracture and sustainable deformation, which strongly depend on the test temperature and strain rates. Typical vein-like structures are dominant on the brittle fracture surfaces at high temperatures while cleavage veins with round-cores are observed at room temperature. The high-temperature deformation behavior and the underlying controlling mechanisms are discussed in the frame of the 'free volume' theory.

Original language	English
Pages (from-to)	642-648
Number of pages	7
Journal	Intermetallics
Volume	13
Issue number	6
DOIs	https://doi.org/10.1016/j.intermet.2004.10.011
Publication status	Published - Jun 2005

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10.1016/j.intermet.2004.10.011

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title = "Tensile fracture characteristics and deformation behavior of a Zr-based bulk metallic glass at high temperatures",

abstract = "The fracture characteristics of the Zr41.25Ti 13.75Ni10Cu12.5Be22.5 (at.%) bulk metallic glass subjected to tensile tests at room temperature, the calorimetric glass transition temperature, and in the supercooled liquid region have been studied. The fracture behavior at high temperatures under tension deformation can be classified as three modes, i.e. brittle fracture, necking fracture and sustainable deformation, which strongly depend on the test temperature and strain rates. Typical vein-like structures are dominant on the brittle fracture surfaces at high temperatures while cleavage veins with round-cores are observed at room temperature. The high-temperature deformation behavior and the underlying controlling mechanisms are discussed in the frame of the 'free volume' theory.",

keywords = "B. Deformation map, B. Fracture mode, B. Glasses, metallic, B. Mechanical properties at high temperatures",

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T1 - Tensile fracture characteristics and deformation behavior of a Zr-based bulk metallic glass at high temperatures

AU - Wang, G.

AU - Shen, J.

AU - Sun, J. F.

AU - Lu, Z. P.

AU - Stachurski, Z. H.

AU - Zhou, B. D.

PY - 2005/6

Y1 - 2005/6

N2 - The fracture characteristics of the Zr41.25Ti 13.75Ni10Cu12.5Be22.5 (at.%) bulk metallic glass subjected to tensile tests at room temperature, the calorimetric glass transition temperature, and in the supercooled liquid region have been studied. The fracture behavior at high temperatures under tension deformation can be classified as three modes, i.e. brittle fracture, necking fracture and sustainable deformation, which strongly depend on the test temperature and strain rates. Typical vein-like structures are dominant on the brittle fracture surfaces at high temperatures while cleavage veins with round-cores are observed at room temperature. The high-temperature deformation behavior and the underlying controlling mechanisms are discussed in the frame of the 'free volume' theory.

AB - The fracture characteristics of the Zr41.25Ti 13.75Ni10Cu12.5Be22.5 (at.%) bulk metallic glass subjected to tensile tests at room temperature, the calorimetric glass transition temperature, and in the supercooled liquid region have been studied. The fracture behavior at high temperatures under tension deformation can be classified as three modes, i.e. brittle fracture, necking fracture and sustainable deformation, which strongly depend on the test temperature and strain rates. Typical vein-like structures are dominant on the brittle fracture surfaces at high temperatures while cleavage veins with round-cores are observed at room temperature. The high-temperature deformation behavior and the underlying controlling mechanisms are discussed in the frame of the 'free volume' theory.

KW - B. Deformation map

KW - B. Fracture mode

KW - B. Glasses, metallic

KW - B. Mechanical properties at high temperatures

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DO - 10.1016/j.intermet.2004.10.011

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SP - 642

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JO - Intermetallics

JF - Intermetallics

IS - 6

ER -

Tensile fracture characteristics and deformation behavior of a Zr-based bulk metallic glass at high temperatures

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