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Special Issue "Synthesis, Characterization and Applications of High-Entropy Alloys"
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".
Deadline for manuscript submissions: closed (20 February 2023) | Viewed by 4603
Special Issue Editor
Interests: HEA; metallic glasses; metastable materials, mechanical behavior; microstructure characterization
Special Issue Information
High-entropy alloys (HEAs) are a lass of new multicomponent alloys with five or more components in equal or near-equal concentrations and have been investigated extensively since they were first described in 2004. Unlike conventional alloys that are normally based on a single host metal, the high entropy of mixing and disordered solution of several elements in HEAs competes with the enthalpy of phase formation. As a result, either single- or multi-phase HEAs can be produced. Based on the type of elements and configurational entropy, several categories have emerged: transition-metal-based HEAs, refractory HEAs, low-density HEAs, ceramic HEAs, and their derivatives, such as medium-entropy alloys (MEAs) with 2–4 principal elements.
Resulting from the multi-element environment, slower diffusion rates, high friction forces on dislocations, and the propensity for twinning contribute to the excellent mechanical properties in HEAs—for example, a continuous work-hardening rate that is sustained to large plastic strains (~0.5) and outstandingly high fracture toughness values. The resistance to shear-band formation under dynamic loading greatly enhance the ballistic properties in HEAs. These extraordinary mechanical properties and ease of processing by conventional means suggest significant applications in many future structural materials.
The aim of this SI is to comprehensively understand the latest developments on the synthesis, characterization, and application of multicomponent HEAs. It is my pleasure to invite you to submit manuscripts on the subject of HEAs for this Special Issue. Full papers, communications, and reviews are all welcome.
Dr. Shuangxi Song
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 2300 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.
- high-entropy alloys
- mechanical properties
- thermodynamic properties
- thin films
- melting and casting
- mechanical alloying and milling
- additive manufacturing