Reply to comments on “Structure origin of a transition of classic-to-avalanche nucleation in Zr-Cu-Al bulk metallic glasses, Acta Materialia, 149, 108 (2018)”

Si Lan, Zhenduo Wu, Xiaoya Wei, Jie Zhou, Zhaoping Lu, Jörg Neuefeind, Xun Li Wang

Research output: Contribution to journalLetterpeer-review

Abstract

In the comments on “Structure origin of a transition of classic-to-avalanche nucleation in Zr-Cu-Al bulk metallic glasses, Acta Materialia, 149, 108 (2018)”, Altounian et al. argued that the avalanche type of nucleation observed in our paper is due to the presence of oxygen and other impurities. In this letter, we show that the amount of oxygen in our bulk metallic glass samples is far below the level found in ribbon samples that would trigger an explosive nucleation event. Rather, the avalanche type of nucleation reported in our study of Zr-Cu-Al bulk metallic glass is a compositional effect, where the elemental compositions were systematically varied leading to different crystalline phases.

Original languageEnglish
Pages (from-to)168-169
Number of pages2
JournalScripta Materialia
Volume163
DOIs
StatePublished - Apr 1 2019

Funding

We acknowledge the APT work conducted by Prof. Gang Sha, Dr. Rong Hu, and Ms. Weixia Dong in Nanjing University of Science and Technology. This work was supported by National Natural Science Foundation of China (Grant nos.: 51501090 and 51571170 ) and by the Research Grants Council of Hong Kong Special Administrative Region ( CityU Project No. 11216215 ). This research used resource of the Advanced Photon Source, a US Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.

Keywords

  • Bulk metallic glasses
  • Crystallization kinetics
  • Glass-forming ability
  • Neutron diffraction

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