Maximizing the degree of rejuvenation in metallic glasses

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Autoren

  • Xudong Yuan
  • Daniel Şopu
  • Kai Kai Song
  • Sergey V. Ketov
  • Konda Gokuldoss Prashanth

Organisationseinheiten

Externe Organisationseinheiten

  • Erich Schmid Institute of Materials Science of the Austrian Academy of Sciences, Leoben
  • Technische Universität Darmstadt
  • Shandong University (Weihai)
  • Tallinn University of Technology
  • Vellore Institute of Technology

Abstract

As the reverse process of relaxation, rejuvenation is the structural excitation process that can bring metallic glasses (MGs) to a higher energy state and usually increases their free volume. Here, using a dilution procedure conducted by randomly removing atoms from the modeled glass matrix, the degree of rejuvenation can be systematically controlled and the maximum rejuvenation threshold of MGs is identified. The structural relaxation is activated during the rejuvenation process and the dynamic balance between free volume creation and annihilation defines the rejuvenation ability of MGs. The highest degree of rejuvenation correlates to the flow strain of the materials and the structure is similar to that found in shear bands.

Details

OriginalspracheEnglisch
Aufsatznummer114575
Seitenumfang5
FachzeitschriftScripta Materialia
Jahrgang212.2022
Ausgabenummer15 April
Frühes Online-Datum3 Feb 2022
DOIs
StatusVeröffentlicht - 15 Apr 2022