Shield gas induced cracks during nanosecond-pulsed laser irradiation of Zr-based metallic glass

Hu Huang, Jun Noguchi, Jiwang Yan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Laser processing techniques have been given increasing attentions in the field of metallic glasses (MGs). In this work, effects of two kinds of shield gases, nitrogen and argon, on nanosecond-pulsed laser irradiation of Zr-based MG were comparatively investigated. Results showed that compared to argon gas, nitrogen gas remarkably promoted the formation of cracks during laser irradiation. Furthermore, crack formation in nitrogen gas was enhanced by increasing the peak laser power intensity or decreasing the laser scanning speed. X-ray diffraction and micro-Raman spectroscopy indicated that the reason for enhanced cracks in nitrogen gas was the formation of ZrN.

Original languageEnglish
Article number881
JournalApplied Physics A: Materials Science and Processing
Volume122
Issue number10
DOIs
Publication statusPublished - 2016 Oct 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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