Tailoring the mechanical properties of bulk metallic glasses via cooling from the supercooled liquid region

Lang Ting Zhang, Ya Juan Duan, Yun Jiang Wang, Yong Yang, Ji Chao Qiao

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Structural rejuvenation is vital and attractive for modulating the energetic state and structural heterogeneity of bulk metallic glasses (BMGs). In this paper, we show that cooling a BMG from a supercooled liquid region at laboratory rates can reverse the relaxation enthalpy lost during the preceding structural relaxation. Increasing the cooling rate is beneficial for enhancing atomic mobility and dynamic mechanical relaxation intensity. Therefore, this rejuvenation methodology promotes tailoring the mechanical properties of BMGs and provides a comprehensive understanding of the rejuvenation mechanism.

Original languageEnglish
Pages (from-to)173-180
Number of pages8
JournalScience China Technological Sciences
Volume66
Issue number1
DOIs
StatePublished - Jan 2023

Keywords

  • bulk metallic glass
  • mechanical relaxation
  • structural heterogeneity
  • supercooled liquid region
  • thermal rejuvenation

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