Rotating-beam fatigue properties and effect of Ni element additive in bulk glassy Zr50Cu40Al10 alloys

Yoshihiko Yokoyama, Kenzo Fukaura, Akihisa Inoue

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

We examined Wöhler curves of Zr50Cu40Al10 and Zr50Cu30Ni10Al10 bulk glassy alloys using a rotating-beam fatigue test to evaluate the effect of adding a Ni element on fatigue strength. As a result, we found that the fatigue limit was increased from 250 MPa to 500 MPa by adding 10 at% Ni instead of Cu to a Zr50Cu40Al10 bulk glassy alloy. A Zr50Cu40Al10 bulk glassy alloy exhibits a wide fatigue-fractured region with striation-like marks up to 80% in response to low applied stress (near the fatigue limit). However, adding Ni limits the fatigue-fractured region to half of the whole fractured surface. We also observed fatigue-fracture surfaces of Zr50Cu40Al10 and Zr50Cu30Ni10Al10 bulk glassy alloys to estimate the fatigue-fracture toughness. The fatigue fracture toughness decreases suddenly around N = 103 to 104, similar to Wöhler curves.

Original languageEnglish
Pages77-90
Number of pages14
Publication statusPublished - 2003 Jul 23
EventMaterials Lifetime: Science and Engineering - San Diego, CA, United States
Duration: 2003 Mar 22003 Mar 6

Other

OtherMaterials Lifetime: Science and Engineering
CountryUnited States
CitySan Diego, CA
Period03/3/203/3/6

Keywords

  • Bulk glassy alloy
  • Fatigue limit
  • Rotating-beam fatigue testing
  • Striation-like mark
  • Wöhler curve
  • ZrCuAl and
  • ZrCuNiAl

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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  • Cite this

    Yokoyama, Y., Fukaura, K., & Inoue, A. (2003). Rotating-beam fatigue properties and effect of Ni element additive in bulk glassy Zr50Cu40Al10 alloys. 77-90. Paper presented at Materials Lifetime: Science and Engineering, San Diego, CA, United States.