Phase Transformations in Metallic Glass

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Entropic Alloys and Meta-Metals".

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 2071

Special Issue Editors


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Guest Editor
State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, Guangdong University of Technology, Guangzhou 510006, China
Interests: metallic glass; nanoscience; mechanical behaviors of materials; physical and chemical synthesis of materials

E-Mail Website
Guest Editor
Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong, China
Interests: high-entropy alloys; metallic glasses; high-entropy metallic glasses

Special Issue Information

Dear Colleagues,

In the material world, metallic glass constitutes an attractive and unusual class of advanced materials in both fundamental studies and practical structural applications. Their amorphous structure without long-range periodicity means metallic glasses have excellent and unique properties and tunable glass states with different atomic structures and energies. The nature of glass is one of the most intriguing and unsolved issues in materials science and condensed-matter physics. It is known that phase transformations provide approaches to modulate the structures and properties of metallic glass, and they also provide valuable opportunities to gain in-depth understanding of the nature of glass.

For this Special Issue, we welcome cutting-edge research focusing on phase transformations in metallic glass and their effects on the structure and properties of materials. The Special Issue aims to outline the fundamental development trends in phase transformations of metallic glass, including crystallization, liquid-to-liquid transition, glass-to-glass transition, and related engineering applications.

Dr. Guannan Yang
Dr. Hengwei Luan
Guest Editors

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Keywords

  • metallic glass
  • phase transition
  • crystallization
  • liquid-to-liquid transition
  • glass-to-glass transition
  • structural characterization
  • microstructure

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Published Papers (1 paper)

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Research

13 pages, 1686 KiB  
Article
Effect of Yttrium Doping on Glass-Forming Ability, Thermal Stability, and Corrosion Resistance of Zr50.7Cu28Ni9Al12.3 Bulk Metallic Glass
by Yuzhao Zhou, Ling Zhao, Yuwei Qu, Liwei Hu, Li Qi, Fengsheng Qu, Shixiong He and Xue Liu
Metals 2023, 13(3), 521; https://doi.org/10.3390/met13030521 - 4 Mar 2023
Cited by 2 | Viewed by 1575
Abstract
Metallic glasses (MGs) possess excellent corrosion resistance due to their amorphous nature. Zr-Cu-Ni-Al is one of the most investigated metallic glass (MG) systems due to its excellent corrosion resistance, relatively low cost, and nontoxic qualities. Yet the application of the Zr-Cu-Ni-Al MGs is [...] Read more.
Metallic glasses (MGs) possess excellent corrosion resistance due to their amorphous nature. Zr-Cu-Ni-Al is one of the most investigated metallic glass (MG) systems due to its excellent corrosion resistance, relatively low cost, and nontoxic qualities. Yet the application of the Zr-Cu-Ni-Al MGs is still limited by its glass forming ability (GFA). It has been found that the doping of yttrium can purify the Zr-Cu-Ni-Al melt and increase GFA. However, research on the yttrium doping’s corrosion resistance is still lacking. In the present work, (Zr50.7Cu28Ni9Al12.3)100−xYx (x = 0 (Y0), 1 (Y1), 2 (Y2), 3 (Y3)) alloys were prepared, and the effects of the yttrium doping on the thermodynamic parameters, crystallization activation energy, and corrosion resistance were studied. It was found that the doping of yttrium can improve the GFA and the crystallization-activation energy of the Zr50.7Cu28Ni9Al12.3 MG. The largest GFA is obtained when the yttrium-doping content reaches 2 at.%. The parameter γ is found to be most suitable for the GFA evaluation of the (Zr50.7Cu28Ni9Al12.3)100−xYx alloy system. Y2 alloy exhibits the best corrosion resistance among the Y0–Y3 alloys according to the potentiodynamic polarization results. The simultaneous increase of the GFA, thermal stability, and corrosion resistance was achieved in the Zr50.7Cu28Ni9Al12.3 MG by proper yttrium doping. Full article
(This article belongs to the Special Issue Phase Transformations in Metallic Glass)
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