High-entropy induced a glass-to-glass transition in a metallic glass

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Hengwei Luan
  • Xin Zhang
  • Hongyu Ding
  • Fei Zhang
  • J. H. Luan
  • Z. B. Jiao
  • Yi-Chieh Yang
  • Hengtong Bu
  • Ranbin Wang
  • Jialun Gu
  • Chunlin Shao
  • Qing Yu
  • Yang Shao
  • Qiaoshi Zeng
  • Na Chen
  • Ke-Fu Yao

Detail(s)

Original languageEnglish
Article number2183
Journal / PublicationNature Communications
Volume13
Online published21 Apr 2022
Publication statusPublished - 2022

Link(s)

Abstract

Glass-to-glass transitions are useful for us to understand the glass nature, but it remains difficult to tune the metallic glass into significantly different glass states. Here, we have demonstrated that the high-entropy can enhance the degree of disorder in an equiatomic high-entropy metallic glass NbNiZrTiCo and elevate it to a high-energy glass state. An unusual glass-to-glass phase transition is discovered during heating with an enormous heat release even larger than that of the following crystallization at higher temperatures. Dramatic atomic rearrangement with a short- and medium-range ordering is revealed by in-situ synchrotron X-ray diffraction analyses. This glass-to-glass transition leads to a significant improvement in the modulus, hardness, and thermal stability, all of which could promote their applications. Based on the proposed high-entropy effect, two high-entropy metallic glasses are developed and they show similar glass-to-glass transitions. These findings uncover a high-entropy effect in metallic glasses and create a pathway for tuning the glass states and properties.

Research Area(s)

  • STRUCTURAL RELAXATION, FREE-VOLUME, CRYSTALLIZATION KINETICS, SUPERCOOLED LIQUID, FORMING ABILITY, CU, SIZE, BEHAVIOR, ORDER, FE

Citation Format(s)

High-entropy induced a glass-to-glass transition in a metallic glass. / Luan, Hengwei; Zhang, Xin; Ding, Hongyu et al.
In: Nature Communications, Vol. 13, 2183, 2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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