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Formation and Mechanical Properties of Metallic Glasses
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Formation and Mechanical Properties of Metallic Glasses

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: closed (10 March 2023) | Viewed by 3699

Special Issue Editors

Dr. Baoan Sun

E-Mail Website
Guest Editor
Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Interests: fracture; shear band; metallic glasses; plasticity
Dr. Chenchen Yuan

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
Interests: metallic glass; mechanical property; microstructure; liquid dynamics

Special Issue Information

Dear Colleagues,

Metallic glasses, a family of metallic materials with metastable glassy states, are obtained by the rapid cooling of liquid alloys. Because of their amorphous atomic structures, metallic glasses exhibit unique mechanical, physical, and chemical properties, which are superior to conventional metals’ and alloys’. Additionally, metallic glasses are a new breed of metallic materials, exhibiting an extremely high glass formability.

With the combination of high strength, elasticity, and fracture resistance, bulk metallic glasses (BMGs) have attracted tremendous research interest over the past few decades. However, low tensile ductility is still one of the key issues of BMGs in structural applications. Due to its high accuracy in replicating complicated mold shapes, the die casting technique has been successfully applied to produce BMG products. On the other hand, metallic glasses can also be formed into complex shapes, like plastics, in the supercooled liquid region, due to their high thermal-plastic forming abilities.

This Special Issue focuses on recent advances in the formation and mechanical properties of metallic glasses. Submitted manuscripts will be fast-track reviewed. Research articles, review articles, perspectives, and communications are welcome.

Dr. Baoan Sun
Dr. Chenchen Yuan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metallic glasses/amorphous alloys
  • glass-forming ability
  • crystallization
  • mechanical properties
  • fracture
  • ductility/plasticity
  • thermal plasticity

Published Papers (2 papers)

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Research

15 pages, 4581 KiB  
Article
Mechanical Response of Glass–Epoxy Composites with Graphene Oxide Nanoparticles
by Vinayak S. Uppin, P. S. Shivakumar Gouda, M. I. Kittur, A. Andriyana, B. C. Ang, Bisma Parveez, Irfan Anjum Badruddin, Syed Javed and Sarfaraz Kamangar
Materials 2022, 15(23), 8545; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15238545 - 30 Nov 2022
Cited by 2 | Viewed by 1211
Abstract
Graphene-based fillers possess exceptional properties that encourage researchers toward their incorporation in glass–epoxy (GE) polymer composites. Regarding the mechanical and wear properties of glass–epoxy composites, the effect of graphene oxide (GO) reinforced in glass–epoxy was examined. A decrease in tensile modulus and increase [...] Read more.
Graphene-based fillers possess exceptional properties that encourage researchers toward their incorporation in glass–epoxy (GE) polymer composites. Regarding the mechanical and wear properties of glass–epoxy composites, the effect of graphene oxide (GO) reinforced in glass–epoxy was examined. A decrease in tensile modulus and increase in tensile strength was reported for 1 wt. % of GO. A shift in glass transition temperature Tg was observed with the addition of GO. The cross-link density and storage modulus of the composite decreased with the addition of GO. The decrease in dissipation energy and wear rate was reported with the increase in GO concentration. A simple one-dimensional damage model of nonlinear nature was developed to capture the stress–strain behavior of the unfilled and filled glass–epoxy composite. Tensile modulus E, Weibull scale parameter σo, and Weibull shape parameter β were considered to develop the model. Finally, to understand the failure mechanisms in GO-filled composites, a scanning electron microscopic (SEM) examination was carried out for tensile fractured composites. Full article
(This article belongs to the Special Issue Formation and Mechanical Properties of Metallic Glasses)
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19 pages, 5747 KiB  
Article
Investigation of Mechanical and Magnetic Properties of Co-Based Amorphous Powders Obtained by Atomization
by Anna Kuś, Wirginia Pilarczyk, Aleksandra Małachowska, Andrzej Ambroziak and Piotr Gębara
Materials 2021, 14(23), 7357; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14237357 - 30 Nov 2021
Cited by 5 | Viewed by 1768
Abstract
Properties of Co-based alloys with high Glass Forming Ability (GFA) in the form of powder are still not widely known. However, powders of high GFA alloys are often used for the development of bulk metallic glasses by additive manufacturing. In this work Co [...] Read more.
Properties of Co-based alloys with high Glass Forming Ability (GFA) in the form of powder are still not widely known. However, powders of high GFA alloys are often used for the development of bulk metallic glasses by additive manufacturing. In this work Co47.6B21.9Fe20.4Si5.1Nb5% at. and Co42B26.5Fe20Ta5.5Si5Cu1% at. were developed by gas-atomization. Obtained powders in size 50–80 µm were annealed at Tg and Tx of each alloy. Then SEM observation, EDS analyses, differential thermal analysis, X-ray diffraction, nanoindentation, Mössbauer, and magnetic properties research was carried out for as-atomized and annealed states. The gas atomization method proved to be an efficient method for manufacturing Co-based metallic glasses. The obtained powder particles were spherical and chemically homogeneous. Annealing resulted in an increase of mechanical properties such as hardness and the elastic module of Co47.6B21.9Fe20.4Si5.1Nb5% at and Co42B26.5Fe20Ta5.5Si5Cu1%, which was caused by crystallization. The magnetic study shows that Co47.6B21.9Fe20.4Si5.1Nb5 and Co42B26.5Fe20Ta5.5Si5Cu1 are soft magnetic and semi-hard magnetic materials, respectively. Full article
(This article belongs to the Special Issue Formation and Mechanical Properties of Metallic Glasses)
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