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Metals
Special Issues
Thermomechanical Performance of Metallic Alloys
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Thermomechanical Performance of Metallic Alloys

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

Deadline for manuscript submissions: 20 April 2026 | Viewed by 868

Special Issue Editors

Dr. Wei Liu

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Interests: metal forming; powder metallurgy; solid mechanics
Special Issues, Collections and Topics in MDPI journals
Dr. Siliang Yan

E-Mail Website
Guest Editor
School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China
Interests: energy field-assisted forming technique; multi-field coupled simulation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Thermomechanical processes are widely used to manufacture critical components of aeroengines and turbine engines, including forging, hot steaming, heat treatment, hot isostatic pressing, coating and so on. Moreover, aeroengine and turbine engine parts often endure thermomechanical loads in practice. Therefore, the thermomechanical performance of metallic alloys is a fundamental factor for the production and service of aeroengine and turbine engines. Furthermore, metallic alloys may exhibit thermal softening, viscosity, rate-dependency, creep, stress relaxation and so on, and microstructure evolution may include recovery, recrystallization, grain boundary sliding, etc. Currently, advanced metallic alloys encompassing ultra-high strength steel, aluminum alloy, magnesium alloy, and titanium alloy are usually processed under high temperatures in the automobile and aerospace industry. In addition, a number of non-conventional processes have been developed for metallic alloys, including the thermal effects of electric fields, lasers, ultrasounds, etc.

In this Special Issue, we welcome articles that focus on the thermomechanical performance of metallic alloys in the manufacturing process or practical applications. Advanced metallic alloy and non-conventional processes are of special interest, with a high implementation potential in producing metallic alloy parts with a high manufacturing ability and a high service life.

Dr. Wei Liu
Dr. Siliang Yan
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

  • high temperature
  • thermal softening
  • viscoelasticity
  • rate-dependent
  • creep
  • stress relaxion
  • forging
  • hot stamping
  • recovery
  • recrystallization

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Published Papers (1 paper)

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Research

18 pages, 4040 KB  
Article
Non-Uniform Microstructural Evolution Rules and Mechanisms of Ti2AlNb-Based Alloy Stiffened Panels Subjected to Electrically Assisted Press Bending
by Xiao-Li Zhang, Si-Liang Yan, Zi-Long Liu, Yu-Hong Gong and Miao Meng
Metals 2026, 16(1), 97; https://doi.org/10.3390/met16010097 - 15 Jan 2026
Viewed by 69
Abstract
A knowledge of the process–structure–property correlation and underlying deformation mechanisms of material under a coupled electro-thermal–mechanical field is crucial for developing novel electrically assisted forming techniques. In this work, numerical simulation and experimental analyses were carried out to study the non-uniform deformation behaviors [...] Read more.
A knowledge of the process–structure–property correlation and underlying deformation mechanisms of material under a coupled electro-thermal–mechanical field is crucial for developing novel electrically assisted forming techniques. In this work, numerical simulation and experimental analyses were carried out to study the non-uniform deformation behaviors and microstructure evolution of Ti2AlNb-based alloy stiffened panels in different characteristic deformation regions during electrically assisted press bending (EAPB). The quantitative relationships between electro-thermal–mechanical routes, microstructural features, and mechanical properties of EAPBed stiffened panels were initially established, and the underlying mechanisms of electrically induced phase transformation and morphological transformation were unveiled. Results show that the temperature of the panel first increases then deceases with forming time in most regions, but it increases monotonically and reaches its peak value of 720.1 °C in the web region close to the central transverse rib. The higher accumulated strain and precipitation of the acicular O phase at mild temperature leads to strengthening of the longitudinal ribs at near blank holder regions, resulting in an ideal microstructure of 3~4% blocky α2 phase + a dual-scale O structure in a B2 matrix with a maximal hardness of 389.4 ± 7.2 HV0.3. While the dissolution of the α2 phase and the spheroidization and coarsening of the O phase bring about softening (up to 9.29%) of the lateral ribs and web near the center region, the differentiated evolution of microstructure and the mechanical property in EAPB results in better deformation coordination and resistance to wrinkling and thickness variation in the rib–web structure. The present work will provide valuable references for achieving shape-performance coordinated manufacturing of Ti2AlNb-based stiffened panels. Full article
(This article belongs to the Special Issue Thermomechanical Performance of Metallic Alloys)
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