Special Issue "Progress in Multiple Eutectic Alloy Materials"

Dear Colleagues,

Multiple-element alloys, or high-entropy alloys (HEAs), which normally consist of at least four elements (the concentration of each element is within 5-35 at.%), have recently become a hot research topic in the field of new metallic materials. HEAs are considered a breakthrough with which to design and explore new alloys with excellent properties. However, most HEAs have failed to show good mechanical properties in a single FCC- or BCC-phase structure. Although some studies have tried to design multi-phase HEAs to improve their mechanical properties, most of them failed to show excellent behavior in castability and liquidity, especially considering the large amount of HEAs used in industrial applications, because segregation occurs in the ingot casting process. To overcome this bottleneck problem, the concept of eutectic alloys was introduced to design new HEAs, or the concept of HEAs was introduced to design new eutectic alloys, because it is well-known that eutectic alloys have good castability and liquidity. The HEAs with a eutectic composition and microstructure are multiple eutectic alloys, or eutectic high-entropy alloys (EHEAs). EHEAs are expected to have innovative properties with which to prepare superalloys. For example, the EHEA AlCoCrFeNi_2.1, with a mixture of hard BCC and soft FCC phases, can have both high fracture strength and excellent plasticity, and CoFeNi₂V_0.5Nb_0.75, with alternating FCC solid solution and Fe₂Nb-type Laves phases, shows excellent fracture strength, yield strength, and plastic strain simultaneously, as well as the possibility of high-temperature applications.

In this Special Issue, we would like to call for papers on new progress in multiple eutectic alloy materials. All research, communication, and review articles are welcome. It is my great pleasure to invite you to submit papers on topics related to the theory, materials’ properties and manufacture, design, thermodynamic calculation, new applications, microstructure and structures, and metallurgy of multiple eutectic alloys or EHEAs.

Prof. Dr. Yun Lei
Guest Editor

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.

• multiple eutectic alloy materials
• eutectic alloys
• EHEAs
• new concept of alloy design
• mixture of FCC and BCC phases
• HEAs