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

G. Y. Wang, P. K. Liaw, Y. Yokoyama, A. Peker, W. H. Peter, B. Yang, M. Freels, Z. Y. Zhang, V. Keppens, R. Hermann, R. A. Buchanan, C. T. Liu, C. R. Brooks

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)663-667
Number of pages5
JournalIntermetallics
Volume15
Issue number5-6
DOIs
Publication statusPublished - 2007 May
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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