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Metals
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Design, Processing and Characterization of Advanced Metallic Materials
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Design, Processing and Characterization of Advanced Metallic Materials

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

Deadline for manuscript submissions: 30 June 2026 | Viewed by 1079

Special Issue Editor

Prof. Dr. Liping Bian

E-Mail Website
Guest Editor
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: lightweight metallic materials; ferrous alloy; metallic composites; alloy design; severe plastic deformation; roll forming; mechanical alloying; electropulsing treatment

Special Issue Information

Dear Colleagues,

Advanced metallic materials represent a cutting-edge class of engineered metals and alloys designed to achieve superior mechanical, thermal, electrical, or functional properties through innovative composition, microstructure control, and advanced processing techniques. This field encompasses high-performance alloys (e.g., high-entropy alloys, superalloys, and refractory metals), lightweight structural alloys (e.g., advanced Al, Mg, and Ti alloys), functional metallic materials (e.g., shape memory alloys, bulk metallic glasses, and porous metals), advanced steels, metal matrix composites, and emerging nanostructured metals. These materials are pivotal in the aerospace, energy, biomedical, and electronics industries, driving technological advancements.

This Special Issue, titled “Design, Processing and Characterization of Advanced Metallic Materials”, aims to showcase the cutting-edge advances in advanced metallic materials science through a comprehensive collection of interdisciplinary research. Focusing on the synergistic integration of materials design, processing innovation, and advanced characterization, this Special Issue will highlight breakthroughs in the following areas:

  • Material Design Innovations: Computational (e.g., CALPHAD, machine learning, high-throughput computing) and experimental approaches for next-generation alloys (e.g., high-entropy alloys, metallic nanocomposites, heterostructured metals).
  • Advanced Processing Techniques: Novel methods such as additive manufacturing (AM), severe plastic deformation (SPD), and hybrid processing for microstructure refinement and defect control.
  • Multiscale Characterization: Advanced tools like in situ TEM, synchrotron XRD, and 3D EBSD to unravel deformation mechanisms, phase transformations, and damage evolution.
  • Performance and Sustainability: Corrosion resistance, high-temperature stability, and recyclability to meet global sustainability demands.

We invite submissions of original research articles, comprehensive reviews, and visionary perspective papers that advance the frontiers of metallic materials science.

Prof. Dr. Liping Bian
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 250 words) can be sent to the Editorial Office for assessment.

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.

Keywords

  • advanced metallic materials
  • material design
  • sustainable processing
  • microstructure regulation
  • multiscale characterization
  • high performance

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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

12 pages, 15632 KB  
Article
Effects of Sn Microalloying on the Microstructure and Properties of Al-Mg-Mn-Si Alloy
by Yue Chai, Shengping Wen, Xiaolan Wu, Kunyuan Gao, Wu Wei, Li Rong, Hui Huang and Zuoren Nie
Metals 2025, 15(12), 1280; https://doi.org/10.3390/met15121280 - 23 Nov 2025
Viewed by 333
Abstract
Microalloying with Sn is a pivotal strategy for enhancing the strength and thermal stability of Al-Mg-Mn-Si alloys by enabling microstructural optimization. This study systematically investigates the influence of 0.1 wt.% Sn on an Al-4.0Mg-1.0Mn-0.2Si alloy through a comparative analysis with a Sn-free counterpart. [...] Read more.
Microalloying with Sn is a pivotal strategy for enhancing the strength and thermal stability of Al-Mg-Mn-Si alloys by enabling microstructural optimization. This study systematically investigates the influence of 0.1 wt.% Sn on an Al-4.0Mg-1.0Mn-0.2Si alloy through a comparative analysis with a Sn-free counterpart. The experimental methodology included isochronal aging and isothermal aging, room-temperature tensile testing, electrical conductivity measurements, and detailed microstructural characterization via transmission electron microscopy (TEM) and optical microscopy (OM). The results unequivocally demonstrate that Sn addition significantly enhances the alloy’s microhardness, tensile properties, and heat resistance. Specifically, the Sn-containing alloy (1#) achieved a peak hardness of 98.4 HV during a three-stage aging process, which is 14.1% higher than the 84.5 HV of the Sn-free alloy (2#). In the as-rolled state, alloy 1# exhibited ultimate tensile strength (UTS) and yield strength (YS) of 397 MPa and 344 MPa, representing increases of 20.2% and 15.7%, respectively, without compromising ductility. Microstructural analysis revealed that the enhancement is attributed to the Sn-promoted formation of finely dispersed α-AlMnSi precipitates. These precipitates effectively pin dislocations, strengthening the alloy, and simultaneously suppress recrystallization nucleation and growth, thereby elevating the recrystallization temperature and improving overall heat resistance. This work confirms that microalloying with Sn is an effective strategy for developing high-performance Al-Mg-Mn-Si alloys with superior mechanical properties and thermal stability. Full article
(This article belongs to the Special Issue Design, Processing and Characterization of Advanced Metallic Materials)
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17 pages, 4760 KB  
Article
Microstructure and Mechanical Properties of CoCrFeNiTax High-Entropy Alloy Prepared by Hot-Pressing Sintering
by Aiyun Jiang, Yajun Zhou, Bo Ren, Jianxiu Liu, Changlin Li and Jiaqiang Qiao
Metals 2025, 15(11), 1244; https://doi.org/10.3390/met15111244 - 13 Nov 2025
Viewed by 417
Abstract
Aiming at the drawbacks of the classic CoCrFeNi high-entropy alloy (HEA)—low room-temperature strength and softening above 600 °C, which fail to meet strict material requirements in high-end fields like aerospace—this study used the vacuum hot-pressing sintering process to prepare CoCrFeNiTax HEAs (x [...] Read more.
Aiming at the drawbacks of the classic CoCrFeNi high-entropy alloy (HEA)—low room-temperature strength and softening above 600 °C, which fail to meet strict material requirements in high-end fields like aerospace—this study used the vacuum hot-pressing sintering process to prepare CoCrFeNiTax HEAs (x = 0, 0.5, 1.0, 1.5, 2.0 atom, designated as H4, Ta0.5, Ta1.0, Ta1.5, Ta2.0, respectively). This process effectively inhibits Ta segregation (a key issue in casting) and facilitates the presence uniform microstructures with relative density ≥ 96%, while this study systematically investigates a broader Ta content range (x = 0–2.0 atom) to quantify phase–property evolution, differing from prior works focusing on limited Ta content or casting/spark plasma sintering (SPS). Via X-ray diffraction (XRD), scanning electron microscopy–energy-dispersive spectroscopy (SEM-EDS), microhardness testing, and room-temperature compression experiments, Ta’s regulatory effect on the alloy’s microstructure and mechanical properties was systematically explored. Results show all alloys have a relative density ≥ 96%, verifying the preparation process’s effectiveness. H4 exhibits a single face-centered cubic (FCC) phase. Ta addition transforms it into a “FCC + hexagonal close-packed (HCP) Laves phase” dual-phase system. Mechanically, the alloy’s inner hardness (reflecting the intrinsic property of the material) increases from 280 HV to 1080 HV, the yield strength from 760 MPa to 1750 MPa, and maximum fracture strength reaches 2280 MPa, while plasticity drops to 12%. Its strengthening mainly comes from the combined action of Ta’s solid-solution strengthening (via lattice distortion hindering dislocation motion) and the Laves phase’s second-phase strengthening (further inhibiting dislocation slip). Full article
(This article belongs to the Special Issue Design, Processing and Characterization of Advanced Metallic Materials)
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