Studying fatigue behavior and Poisson’s ratio of bulk-metallic glasses

Wang, G.Y and Liaw, P.K. and Yokoyama, Y. and Peker, A. and Peter, W.H. and Yang, B. and Freels, M. and Zhang, Z.Y. and Keppens, V. and Hermann, R. and Buchanan, R.A. and Liu, C.T. and Brooks, C.R. (2007) Studying fatigue behavior and Poisson’s ratio of bulk-metallic glasses. Intermetallics, 15 (5-6). pp. 663-667. DOI 10.1016/j.intermet.2006.10.034

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Abstract

High-cycle fatigue (HCF) experiments were conducted on zirconium (Zr)-based bulk-metallic glasses (BMGs): Zr50Cu40Al10, Zr50Cu30Al10Ni10, Zr41.2Ti13.8Cu12.5Ni10Be22.5, and Zr50Cu37Al10Pd3 (in atomic percent) in air. The fatigue-endurance limit of Zr50Cu37Al10Pd3 was significantly greater than those of Zr50Cu40Al10, Zr50Cu30Al10Ni10, and Zr41.2Ti13.8Cu12.5Ni10Be22.5. The resonant ultrasound spectroscopy technique was employed to determine the Poisson’s ratios, shear moduli, and bulk moduli of these BMGs. The ratio of the fatigue-endurance limit to the tensile strength increases with increasing Poisson’s ratio. A possible relationship between the ratio of the fatigue-endurance limit to the tensile strength and the ratio of the shear modulus to the bulk modulus or Poisson’s ratio will be discussed.

Item Type: Article
Additional Information: cml, LiquidMetal Technologies Inc.
Uncontrolled Keywords: NIL AREP, CML
Subjects: 99 - Other
Divisions: 99 - Other
Journal or Publication Title: Intermetallics
Volume: 15
Page Range: pp. 663-667
Identification Number: 10.1016/j.intermet.2006.10.034
Depositing User: Sarah Humbert
Date Deposited: 17 Jun 2011 23:27
Last Modified: 23 Jul 2013 10:02
URI: http://eprints.esc.cam.ac.uk/id/eprint/2093

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