Fatigue behavior of Zr-Ti-Ni-Cu-Be bulk-metallic glasses

G. Y. Wang; P. K. Liaw; A. Peker; B. Yang; M. L. Benson; W. Yuan; W. H. Peter; L. Huang; M. Freels; R. A. Buchanan; C. T. Liu; C. R. Brooks

doi:10.1016/j.intermet.2004.07.037

Fatigue behavior of Zr-Ti-Ni-Cu-Be bulk-metallic glasses

G. Y. Wang, P. K. Liaw, A. Peker, B. Yang, M. L. Benson, W. Yuan, W. H. Peter, L. Huang, M. Freels, R. A. Buchanan, C. T. Liu, C. R. Brooks

Research output: Contribution to journal › Conference article › peer-review

111 Scopus citations

Abstract

The high-cycle fatigue (HCF) behavior of the Zr_41.2Ti _13.8Cu_12.5Ni₁₀Be_22.5 (in at.%) bulk-metallic glass (BMG) was studied. Two batches of samples that are from different lots (Batches 59 and 94) are employed in present experiments. The HCF experiments were conducted, using an electrohydraulic machine at a frequency of 10 Hz with a R ratio of 0.1 in air at room temperature and under tension-tension loading, where R=σ_min./σ_max.. (σ_min. and σ_max. are the applied minimum and maximum stresses, respectively). A high-speed and high-sensitivity thermographic-infrared (IR) imaging system was employed for the nondestructive evaluation of temperature evolutions during fatigue testing. No distinct sparking phenomenon was observed at the final fracture moment for this alloy. The fatigue lifetime of Batch 59 is longer than that of Batch 94 at high stress levels (maximum stresses >864 MPa). Moreover, the fatigue-endurance limit of Batch 59 (703 MPa) is somewhat greater than that of Batch 94 (615 MPa). The vein pattern and liquid droplets were observed in the apparent-melting region along the edge of the fractured surfaces. The fracture morphology suggests that fatigue cracks initiated from casting defects, such as porosities and inclusions, which have an important effect on the fatigue behavior of BMGs.

Original language	English
Pages (from-to)	429-435
Number of pages	7
Journal	Intermetallics
Volume	13
Issue number	3-4
DOIs	https://doi.org/10.1016/j.intermet.2004.07.037
State	Published - Mar 2005
Externally published	Yes

Funding

We would like to acknowledge the financial support of the National Science Foundation, the Division of Design, Manufacture, and Industrial Innovation, under Grant No. DMI-9724476, the Combined Research-Curriculum Development (CRCD) Programs, under EEC-9527527 and EEC-0203415, the Integrative Graduate Education and Research Training (IGERT) Program, under DGE-9987548, and the International Materials Institutes (IMI), under DMR-0231320, to the University of Tennessee, Knoxville, with Dr D. Durham, Ms M. Poats, Dr W. Jennings, Dr L. Goldberg and Dr C. Huber as contract monitors, respectively. The authors would also like to thank Mr B. R. Barnard of The University of Tennessee and Dr K. Liu of the Oak Ridge National Laboratory (ORNL) for their help. The work at ORNL was sponsored by the Division of Materials Science and Engineering, US Department of Energy under Contract DE-AC05-00 OR -22725 with UT-Battelle, LLC.

Keywords

B. Fatigue resistance and crack growth
B. Glasses, metallic
F. Electron microscopy, scanning

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10.1016/j.intermet.2004.07.037

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title = "Fatigue behavior of Zr-Ti-Ni-Cu-Be bulk-metallic glasses",

abstract = "The high-cycle fatigue (HCF) behavior of the Zr41.2Ti 13.8Cu12.5Ni10Be22.5 (in at.%) bulk-metallic glass (BMG) was studied. Two batches of samples that are from different lots (Batches 59 and 94) are employed in present experiments. The HCF experiments were conducted, using an electrohydraulic machine at a frequency of 10 Hz with a R ratio of 0.1 in air at room temperature and under tension-tension loading, where R=σmin./σmax.. (σmin. and σmax. are the applied minimum and maximum stresses, respectively). A high-speed and high-sensitivity thermographic-infrared (IR) imaging system was employed for the nondestructive evaluation of temperature evolutions during fatigue testing. No distinct sparking phenomenon was observed at the final fracture moment for this alloy. The fatigue lifetime of Batch 59 is longer than that of Batch 94 at high stress levels (maximum stresses >864 MPa). Moreover, the fatigue-endurance limit of Batch 59 (703 MPa) is somewhat greater than that of Batch 94 (615 MPa). The vein pattern and liquid droplets were observed in the apparent-melting region along the edge of the fractured surfaces. The fracture morphology suggests that fatigue cracks initiated from casting defects, such as porosities and inclusions, which have an important effect on the fatigue behavior of BMGs.",

keywords = "B. Fatigue resistance and crack growth, B. Glasses, metallic, F. Electron microscopy, scanning",

author = "Wang, {G. Y.} and Liaw, {P. K.} and A. Peker and B. Yang and Benson, {M. L.} and W. Yuan and Peter, {W. H.} and L. Huang and M. Freels and Buchanan, {R. A.} and Liu, {C. T.} and Brooks, {C. R.}",

year = "2005",

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T1 - Fatigue behavior of Zr-Ti-Ni-Cu-Be bulk-metallic glasses

AU - Wang, G. Y.

AU - Liaw, P. K.

AU - Peker, A.

AU - Yang, B.

AU - Benson, M. L.

AU - Yuan, W.

AU - Peter, W. H.

AU - Huang, L.

AU - Freels, M.

AU - Buchanan, R. A.

AU - Liu, C. T.

AU - Brooks, C. R.

PY - 2005/3

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N2 - The high-cycle fatigue (HCF) behavior of the Zr41.2Ti 13.8Cu12.5Ni10Be22.5 (in at.%) bulk-metallic glass (BMG) was studied. Two batches of samples that are from different lots (Batches 59 and 94) are employed in present experiments. The HCF experiments were conducted, using an electrohydraulic machine at a frequency of 10 Hz with a R ratio of 0.1 in air at room temperature and under tension-tension loading, where R=σmin./σmax.. (σmin. and σmax. are the applied minimum and maximum stresses, respectively). A high-speed and high-sensitivity thermographic-infrared (IR) imaging system was employed for the nondestructive evaluation of temperature evolutions during fatigue testing. No distinct sparking phenomenon was observed at the final fracture moment for this alloy. The fatigue lifetime of Batch 59 is longer than that of Batch 94 at high stress levels (maximum stresses >864 MPa). Moreover, the fatigue-endurance limit of Batch 59 (703 MPa) is somewhat greater than that of Batch 94 (615 MPa). The vein pattern and liquid droplets were observed in the apparent-melting region along the edge of the fractured surfaces. The fracture morphology suggests that fatigue cracks initiated from casting defects, such as porosities and inclusions, which have an important effect on the fatigue behavior of BMGs.

AB - The high-cycle fatigue (HCF) behavior of the Zr41.2Ti 13.8Cu12.5Ni10Be22.5 (in at.%) bulk-metallic glass (BMG) was studied. Two batches of samples that are from different lots (Batches 59 and 94) are employed in present experiments. The HCF experiments were conducted, using an electrohydraulic machine at a frequency of 10 Hz with a R ratio of 0.1 in air at room temperature and under tension-tension loading, where R=σmin./σmax.. (σmin. and σmax. are the applied minimum and maximum stresses, respectively). A high-speed and high-sensitivity thermographic-infrared (IR) imaging system was employed for the nondestructive evaluation of temperature evolutions during fatigue testing. No distinct sparking phenomenon was observed at the final fracture moment for this alloy. The fatigue lifetime of Batch 59 is longer than that of Batch 94 at high stress levels (maximum stresses >864 MPa). Moreover, the fatigue-endurance limit of Batch 59 (703 MPa) is somewhat greater than that of Batch 94 (615 MPa). The vein pattern and liquid droplets were observed in the apparent-melting region along the edge of the fractured surfaces. The fracture morphology suggests that fatigue cracks initiated from casting defects, such as porosities and inclusions, which have an important effect on the fatigue behavior of BMGs.

KW - B. Fatigue resistance and crack growth

KW - B. Glasses, metallic

KW - F. Electron microscopy, scanning

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DO - 10.1016/j.intermet.2004.07.037

M3 - Conference article

AN - SCOPUS:13844297481

SN - 0966-9795

VL - 13

SP - 429

EP - 435

JO - Intermetallics

JF - Intermetallics

IS - 3-4

ER -

Fatigue behavior of Zr-Ti-Ni-Cu-Be bulk-metallic glasses

Abstract

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Keywords

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