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Intermetallics: From Design to Structural and Properties

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

Deadline for manuscript submissions: 20 May 2024 | Viewed by 297

Special Issue Editors


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Guest Editor
Faculty of Mechanical Engineering, Jan Evangelista Purkyně University in Ústí nad Labem, Ústí nad Labem, Czech Republic
Interests: intermetallic alloys; powder metallurgy; titanium alloys; aluminum alloys; mechanical alloying; spark plasma sintering
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Metals and Corrosion Engineering, University of Chemistry and Technology, Technická 5, 166 28 Prague, Czech Republic
Interests: intermetallic alloys; powder metallurgy; titanium alloys; aluminum alloys; mechanical alloying; spark plasma sintering; high-entropy alloys
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Intermetallics are a special group of metallic materials whose properties allow use under conditions in which conventional metallic materials fail; these conditions include high temperatures, aggressive corrosive environments, and extreme abrasive and adhesive stresses.

Many intermetallic compounds display excellent physical and mechanical properties, specifically very good thermal stability, high melting point, good corrosion resistance, and low density, making them suitable candidates for high-temperature applications. However, these materials show limited ductility and high brittleness, especially at low temperatures, which impedes their wider use.

The use of materials based on intermediate compounds is very diverse, but it is always necessary to consider the choice of a particular material in terms of its physical or mechanical properties. They are used, for example, as construction materials, shape memory materials (NiTi), heating elements of electric resistance furnaces (MoSi2), magnetic alloys (Ni3Fe), hydrogen storage materials (Mg2Ni, LaNi5) or high-temperature materials (TiAl, NiAl), or for strongly oxidizing environments (FeAl).

It is my great pleasure to invite all researchers from the community of researchers investigating intermetallics to submit a manuscript in the field for this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Anna Knaislová
Dr. Pavel Novak
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

  • intermetallic alloys
  • powder metallurgy
  • titanium alloys
  • aluminum alloys
  • steels
  • mechanical alloying
  • spark plasma sintering
  • mechanical properties
  • microstructure
  • melting

Published Papers (1 paper)

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Research

11 pages, 1644 KiB  
Communication
Load-Independent Hardness and Indentation Size Effect in Iron Aluminides
by Sebastian Balos, Milan Pecanac, Mirjana Trivkovic, Savo Bojic and Pavel Hanus
Materials 2024, 17(9), 2107; https://doi.org/10.3390/ma17092107 (registering DOI) - 29 Apr 2024
Abstract
In this paper, an iron–aluminide intermetallic compound with cerium addition was subjected to Vickers microhardness testing. A full range of Vickers microhardness loadings was applied: 10, 25, 50, 100, 200, 300, 500, and 1000 g. Tests were conducted in two areas: 0.5 mm [...] Read more.
In this paper, an iron–aluminide intermetallic compound with cerium addition was subjected to Vickers microhardness testing. A full range of Vickers microhardness loadings was applied: 10, 25, 50, 100, 200, 300, 500, and 1000 g. Tests were conducted in two areas: 0.5 mm under the surface of the rolled specimen and in the center. The aim was to find the optimal loading range that gives the true material microhardness, also deemed load-independent hardness, HLIH. The results suggest that in the surface area, the reverse indentation size effect (RISE) occurred, similar to ceramics and brittle materials, while in the center, indentation size effect (ISE) behavior was obtained, more similar to metals. This clearly indicated an optimal microhardness of over 500 g in the surface region and over 100 g in the central region of the specimen. Load dependencies were quantitatively described by Meyer’s law, proportional specimen resistance (PSR), and the modified PSR model. The modified PSR model proved to be the most adequate. Full article
(This article belongs to the Special Issue Intermetallics: From Design to Structural and Properties)
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