Fatigue pre-cracking and toughness of the Zr55Cu30Al10Ni5 bulk metallic glass for two oxygen levels

V. Keryvin, Y. Nadot, Y. Yokoyama

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

Samples of a Zr-based bulk metallic glass with a small (1000 appm) or very small (less than 300 appm) oxygen content are pre-cracked by fatigue and tested for toughness evaluation. It is shown that oxygen trapped in oxide dendrites eases the initiation of a straight crack and embrittles the glass even at such low concentrations. In contrast, when oxygen is dissolved in the glass, fatigue crack initiation becomes difficult and it is not possible to get a crack passing straight through the glass.

Original languageEnglish
Pages (from-to)145-148
Number of pages4
JournalScripta Materialia
Volume57
Issue number2
DOIs
Publication statusPublished - 2007 Jul

Keywords

  • Embrittlement
  • Metallic glasses
  • Oxygen
  • Residual stresses
  • Toughness

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Fingerprint

Dive into the research topics of 'Fatigue pre-cracking and toughness of the Zr<sub>55</sub>Cu<sub>30</sub>Al<sub>10</sub>Ni<sub>5</sub> bulk metallic glass for two oxygen levels'. Together they form a unique fingerprint.

Cite this