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Metals
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Microstructural, Mechanical and Magnetic Properties of Metallic Microwires
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Microstructural, Mechanical and Magnetic Properties of Metallic Microwires

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (31 December 2024) | Viewed by 2867

Special Issue Editors

Prof. Dr. Jingshun Liu

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot, China
Interests: Metallic microwires; microstructural characterization; mechanical property; magnetic property; physical and chemical effects; functional device; sensor applications
Special Issues, Collections and Topics in MDPI journals
Dr. Hongxian Shen

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
Interests: metallic microwires; mechanical property; magnetic refrigeration; functional devices and applications

Special Issue Information

Dear Colleagues,

The investigation of metallic microwires is considered by international experts in the field of microwires as one of the novel research directions with potential application prospects. Metallic microwires exhibit special microstructural, mechanical and magnetic properties due to the unique preparation processes, and they exhibit different properties from those of bulk metallic glasses (BMGs). Therefore, particular mechanical and magnetic properties of metallic microwires provide the possibility of performance modulation and functional integration applications, especially according to microstructural evolution. Nowadays, researchers pay lots of attention to metallic microwires, particularly in the fields of structural and functional devices, electromagnetic shielding, microwave absorption, magnetic detection and refrigeration, etc. Meanwhile, some basic scientific issues of metallic microwires still need to be further studied, revealed and clarified.

In this Special Issue, we invite you to contribute articles that focus on the latest research progress related to preparation processes, including rapid solidification (RS) technology, microstructural characterization and mechanical and magnetic properties, and the interesting physical and chemical effects of metallic microwires, as well as articles that demonstrate innovative multi-functional devices and potential applications based on advanced metallic microwires.

Prof. Dr. Jingshun Liu
Dr. Hongxian Shen
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. Metals is an international peer-reviewed open access monthly 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.

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

15 pages, 3757 KiB  
Article
The Effect of Fe Content on the Shape Memory Effect of Ni-Mn-Ga-Fe Shape Memory Alloy Microwires after Ordering Heat Treatment
by Yanfen Liu, Zixuan Ma, Shuang Li, Puhan Yan, Qingnan Hou and Jianfei Sun
Metals 2024, 14(10), 1167; https://doi.org/10.3390/met14101167 - 12 Oct 2024
Viewed by 1038
Abstract
The shape memory capabilities of Heusler alloy microwires with two different contents of Fe element instead of Ga element following step-by-step ordering heat treatment were explored based on the stoichiometric ratio of Ni2MnGa. The melt-drawing technique was used to create the [...] Read more.
The shape memory capabilities of Heusler alloy microwires with two different contents of Fe element instead of Ga element following step-by-step ordering heat treatment were explored based on the stoichiometric ratio of Ni2MnGa. The melt-drawing technique was used to create the polycrystalline microwires, and the two microwires had Fe atomic contents of 4.7 at.% and 5.5 at.%, respectively. The field emission scanning electron microscope was used to analyze the microwire’s surface condition as well as the microscopic tensile fracture morphology. Using an X-ray diffractometer, the microwires’ crystal structure was identified for phase analysis. Differential scanning calorimetry was used to examine the microwires’ behavior during martensitic transformation. Using a dynamic mechanical stretcher, the elongation and recovery rate of microwires’ one- and two-way shape memory behavior were examined. The findings demonstrated that the microwire phase structure, martensitic transformation behavior, and shape memory capabilities all displayed good properties after the heat treatment was ordered. Full article
(This article belongs to the Special Issue Microstructural, Mechanical and Magnetic Properties of Metallic Microwires)
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11 pages, 3462 KiB  
Article
Magnetocaloric Properties of Melt-Extracted Medium Entropy Gd33Co33Al34 Microfibers
by Ning Zhang, Hongxian Shen, Lin Luo, Jingshun Liu, Zijian Zhao, Lunyong Zhang, Jianfei Sun and Manh-Huong Phan
Metals 2024, 14(8), 880; https://doi.org/10.3390/met14080880 - 30 Jul 2024
Cited by 1 | Viewed by 1159
Abstract
In this paper, a new medium entropy alloy with nominal composition of Gd33Co33Al34 was designed and fabricated into microfibers by a melt-extraction method. The microstructure, thermophysical parameters, and magnetocaloric properties of the obtained fibers were systematically analyzed. The [...] Read more.
In this paper, a new medium entropy alloy with nominal composition of Gd33Co33Al34 was designed and fabricated into microfibers by a melt-extraction method. The microstructure, thermophysical parameters, and magnetocaloric properties of the obtained fibers were systematically analyzed. The results showed that the as-cast fibers show an amorphous matrix with embedded in situ nano crystals. The fibers show a good magnetocaloric effect with the maximum magnetic entropy change of ~6 J/kg·K for a field change of 5 T. Notably, the fibers show excellent cooling efficiencies with an RCP and RC of ~611.72 and ~487.38 J/kg, respectively. Though the as-cast fibers possess an amorphous/nanocrystal bi-phase structure, they still exhibit a second-order transition near a Curie temperature of ~96 K. Our findings provide a promising pathway towards developing new magnetocaloric materials with good magnetocaloric performances. Full article
(This article belongs to the Special Issue Microstructural, Mechanical and Magnetic Properties of Metallic Microwires)
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