Consecutive nucleation events during divetrification of Zr 52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass

Ling Yang, Xun Li Wang, Wallace D. Porter, Zhaoping Lu, Alexandru D. Stoica, E. Andrew Payzant, Jonathan Almer, Donglu Shi

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

DSC, XRD, and in-situ synchrotron diffraction experiments were carried out to investigate the devitrification behavior of Zr52.5Cu 17.9Ni14.6Al10Ti5 bulk metallic glass. Through careful measurements of isochronal and isothermal DSC traces, we identified two consecutive exothermal peaks. XRD patterns collected at various stages of isothermal annealing and in-situ synchrotron data collected during isochronal heating indicate that the exothermal peaks correspond to two nucleation events, with different local atomic structures. Multi-parameter refinement of both isochronal and isothermal DSC data show that the devitrification behavior of this alloy is adequately described by JMA theory with a two-step consecutive reaction model, so long as the heating rate is < 10 K/min.

Original languageEnglish
Pages (from-to)1043-1047
Number of pages5
JournalAdvanced Engineering Materials
Volume10
Issue number11
DOIs
StatePublished - Nov 2008

Fingerprint

Dive into the research topics of 'Consecutive nucleation events during divetrification of Zr 52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass'. Together they form a unique fingerprint.

Cite this