Nanoscale wavy fracture surface of a Pd-based bulk metallic glass

Na Chen, D. V. Louzguine-Luzgin, G. Q. Xie, A. Inoue

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


The authors report the observations of nanoscale wavy steps on fracture surface of a Pd-based bulk metallic glass. The wavy steps are generated by crack front waves. Besides this kind of steps, it is also found that there is a dispersive microscale wavy trace aligned along a backbone "branch line," which is induced by dynamic instability of a rapidly propagating crack front. Such microbranching events are evidenced as dissipating energy accumulated at the crack front by creating the additional fracture surface area when the crack propagation exceeds a critical velocity.

Original languageEnglish
Article number131906
JournalApplied Physics Letters
Issue number13
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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