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Metals
Special Issues
The Forming Behaviour and Plasticity of Metallic Alloys
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The Forming Behaviour and Plasticity of Metallic Alloys

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 1504

Special Issue Editors

Dr. Yongkun Li

E-Mail Website
Guest Editor
Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
Interests: semi-solid; forming process; metal plasticity; modification of non-ferrous metals; microstructure; mechanical properties
Dr. Yongfei Wang

E-Mail Website
Guest Editor
School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: severe plastic deformation; radial forging process; isothernal treatment; semi-solid metal process
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The forming behaviour and plasticity of metallic alloys underpin critical advancements in aerospace, automotive, and energy applications. This Special Issue aims to address the multiscale mechanisms governing alloy deformation, from dislocation slip and twinning to phase transformations and grain boundary dynamics. We invite contributions that explore the following topics:

  1. Novel formation technologies (e.g., electromagnetic/electric field-assisted forming, severe plastic deformation) and their role in tailoring microstructural evolution;
  2. Strain localization phenomena, including shear banding, damage initiation, and fracture across strain rates (quasi-static to impact);
  3. Physics-based constitutive modeling, integrating machine learning and crystal plasticity frameworks;
  4. Emerging alloys (HEAs, metastable alloys, composites) with exceptional strength–ductility synergy.

Recent breakthroughs in in situ characterization (HR-DIC, synchrotron tomography) and multiscale simulations have revealed unprecedented insights into deformation heterogeneities. However, fundamental gaps persist in predicting microstructure–property relationships for complex loading paths. This Special Issue seeks to bridge the gaps in experimental innovation, computational physics, and industrial forming challenges, emphasizing sustainability through lightweight design and energy-efficient processing. Submissions advancing fundamental theory, process optimization, or industrial case studies are welcome.

Dr. Yongkun Li
Dr. Yongfei Wang
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 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

  • forming technologies
  • metal plasticity
  • deformation mechanisms
  • multi-scale experiments and simulations
  • strain localization
  • emerging alloys
  • advanced characterization methods
  • microstructure–property relationship
  • industrial applications

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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

30 pages, 11737 KB  
Article
Numerical Study of Constructal Design Applied to Perforated Thin Plates Under Elasto-Plastic Buckling Due to Combined Loading
by Guilherme Ribeiro Baumgardt, Raí Lima Vieira, Elizaldo Domingues dos Santos, Luiz Alberto Oliveira Rocha, Thiago da Silveira and Liércio André Isoldi
Metals 2026, 16(1), 81; https://doi.org/10.3390/met16010081 - 11 Jan 2026
Viewed by 361
Abstract
Thin plates are widely used and can be subjected to combined loads that trigger elasto-plastic buckling. Often, these plates are perforated, which significantly changes their mechanical response. This study investigates six perforation geometries (elliptical, longitudinal hexagonal, transverse hexagonal, longitudinal oblong, transverse oblong, and [...] Read more.
Thin plates are widely used and can be subjected to combined loads that trigger elasto-plastic buckling. Often, these plates are perforated, which significantly changes their mechanical response. This study investigates six perforation geometries (elliptical, longitudinal hexagonal, transverse hexagonal, longitudinal oblong, transverse oblong, and rectangular) and their influence on the ultimate buckling stress of perforated plates under biaxial compression and lateral pressure. Three plates with a distinct width b and length a ratio (b/a) and five unperforated plate volume and perforation volume ratios (ϕ) are analyzed using finite element analysis in ANSYS®, combined with Constructal Design, Exhaustive Search, and the Technique for Order Preference by Similarity to an Ideal (TOPSIS). Perforation geometry is shown to be a decisive parameter: elliptical perforations are the most efficient, limiting strength loss in rectangular plates with b/a = 1/3 and ϕ = 0.025 to about 6%, while oblong perforations cause reductions of up to 14%. In square plates (b/a = 1), elliptical perforations preserve more than 98% of the original strength for ϕ ≤ 0.05 and over 90% at ϕ = 0.20. TOPSIS results highlight configurations that balance small reductions in ultimate buckling stress with up to 23% lower maximum deflection, providing practical design guidelines. Full article
(This article belongs to the Special Issue The Forming Behaviour and Plasticity of Metallic Alloys)
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19 pages, 4904 KB  
Article
Room-Temperature Superplasticity in a Biodegradable Zn-0.1Mg Alloy
by Karel Saksl, Róbert Kočiško, Patrik Petroušek, Miloš Matvija, Martin Fujda, Dávid Csík, Zuzana Molčanová, Beáta Ballóková, Iryna Cuperová, Katarína Gáborová, Maksym Lisnichuk, Miloslav Lupták and Adam Lupták
Metals 2025, 15(10), 1161; https://doi.org/10.3390/met15101161 - 21 Oct 2025
Viewed by 761
Abstract
Biodegradable zinc-based alloys have recently emerged as promising candidates for temporary biomedical implants due to their favorable biocompatibility, appropriate degradation rate, and relatively simple processing. In this study, the Zn-0.1Mg alloy was investigated after being processed by means of a two-step equal-channel angular [...] Read more.
Biodegradable zinc-based alloys have recently emerged as promising candidates for temporary biomedical implants due to their favorable biocompatibility, appropriate degradation rate, and relatively simple processing. In this study, the Zn-0.1Mg alloy was investigated after being processed by means of a two-step equal-channel angular pressing (ECAP) route, consisting of the first pass at 150 °C followed by a second pass at room temperature. The mechanical properties were evaluated using uniaxial tensile tests at different strain rates, while the microstructure and phase composition were analyzed using synchrotron hard X-ray diffraction and transmission electron microscopy (TEM). The processed alloy exhibited a remarkable enhancement in both strength and ductility compared to the annealed state. At the lowest applied strain rate, a fracture elongation of up to 240% was achieved at room temperature, representing a unique manifestation of superplasticity under ambient conditions. Diffraction analysis confirmed the stability of the supersaturated Zn matrix with minor Mg2Zn11 intermetallic phase. TEM observations revealed an ultrafine-grained microstructure and activation of non-basal slip systems, which enabled efficient plastic flow. These findings demonstrate that controlled severe plastic deformation provides an effective pathway for tailoring Zn-Mg alloys, opening opportunities for their use in the next generation of bioresorbable low-to-moderate load orthopedic fixation devices, e.g., plates, screws, suture anchors and craniofacial miniplates. Full article
(This article belongs to the Special Issue The Forming Behaviour and Plasticity of Metallic Alloys)
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