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Development of Advanced Aluminum and Magnesium Alloys: Microstructure, Mechanical Properties and Processing—2nd Edition

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: 20 June 2025 | Viewed by 925

Special Issue Editor

Prof. Dr. Wenming Jiang

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Guest Editor
State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: magnesium and aluminum alloys; metal matrix composites; casting technology; solidification microstructure control; 3D printing technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Mg and Al alloys are the first and second engineering light metals, which are widely used in aviation, aerospace, navigation, automotive, and electronics fields. With the rapid development of these fields, the demand for the properties of Mg and Al alloys is further increased, and the requirements of the large complex light Mg and Al alloys components are higher and higher. Therefore, high-performance advanced Mg and Al light alloys will have great application potential in the future, as they have also become a research hotspot. The development of the advanced Mg and Al alloys involves in-depth studies of the microstructures, mechanical properties, and processing processes of Mg and Al alloys.

This Special Issue welcomes reviews, short communications, and full-length research papers focused on the following topics: 

  • High-strength, high-toughness, and high-modulus Mg and Al alloys;
  • Processing of innovative high-strength Mg and Al alloys, such as casting, plastic forming, welding, 3D printing, or powder metallurgy methods;
  • Relationships among the microstructure, mechanical properties, and processing conditions of the Mg and Al alloys;
  • Composition design and calculation, and microstructure regulation of the Mg and Al alloys;
  • Control of formation and defects of Mg and Al alloy components during processing.

Common light alloys, such as aluminum, magnesium, or their composites, will also be considered. Special attention should be paid to the relationships among their microstructure, mechanical properties, and processing conditions.

Prof. Dr. Wenming Jiang
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 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

  • Mg alloys
  • Al alloys
  • composites
  • microstructure
  • mechanical properties
  • processing

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Published Papers (2 papers)

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Research

28 pages, 16513 KiB  
Article
Effect of Multi-Directional Forging on Microstructure and Mechanical Properties of Dual-Phase Mg-8Li-3Al-0.3Si Alloy
by Pengcheng Tian, Cuiju Wang, Kaibo Nie, Yaniu Li and Kunkun Deng
Materials 2025, 18(8), 1829; https://doi.org/10.3390/ma18081829 - 16 Apr 2025
Viewed by 242
Abstract
The Mg-8Li-3Al-0.3Si dual-phase alloy (LA83-0.3Si) was subjected to six multi-directional forging (MDF) passes in the present work, then its microstructure, mechanical properties, and work hardening and work softening effects were examined and analyzed. The results indicate that the continuous dynamic recrystallization (CDRX) mechanism [...] Read more.
The Mg-8Li-3Al-0.3Si dual-phase alloy (LA83-0.3Si) was subjected to six multi-directional forging (MDF) passes in the present work, then its microstructure, mechanical properties, and work hardening and work softening effects were examined and analyzed. The results indicate that the continuous dynamic recrystallization (CDRX) mechanism of the LA83-0.3Si dual-phase alloy gradually transitioned to a discontinuous dynamic recrystallization (DDRX) mechanism as the temperature increased after MDF. This temperature change induced a transition in the basal texture from bimodal to multimodal, significantly reducing the texture intensity and weakening the alloy’s anisotropy. At 310 °C, the AlLi phase nucleated into coated particles to stabilize the structure. Additionally, the increase in the forging temperature weakened the synergistic deformation capability of the α/β phases, while the hardening behavior of the β-Li phase provided a nucleation pathway for dynamic recrystallization (DRX). MDF significantly enhanced the strength and ductility of the LA83-0.3Si alloy. The alloy’s strength continued to rise, while elongation decreased as the forging temperature increased. The ultimate tensile strength (UTS) and elongation (EL) reached 267.8 MPa and 11.9%, respectively. The work hardening effect increased with the forging temperature, whereas the work softening effect continuously diminished, attributed to the enhanced hardening behavior of the β phase and the reduced ability to transfer dislocations. Full article
(This article belongs to the Special Issue Development of Advanced Aluminum and Magnesium Alloys: Microstructure, Mechanical Properties and Processing—2nd Edition)
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13 pages, 3043 KiB  
Article
Prediction of Grain Structure and Texture in Twin-Roll Cast Aluminum Alloys Using Cellular Automaton–Finite Element Method
by Han-Gyoung Cho, Young Do Kim and Min-Seok Kim
Materials 2025, 18(5), 1075; https://doi.org/10.3390/ma18051075 - 27 Feb 2025
Viewed by 493
Abstract
The twin-roll casting (TRC) process has gained significant attention for aluminum sheet production due to its cost-effectiveness and high processing efficiency. However, controlling the initial grain structure of TRC strips remains challenging due to the absence of a hot rolling stage, necessitating an [...] Read more.
The twin-roll casting (TRC) process has gained significant attention for aluminum sheet production due to its cost-effectiveness and high processing efficiency. However, controlling the initial grain structure of TRC strips remains challenging due to the absence of a hot rolling stage, necessitating an advanced predictive modeling approach. In this study, a cellular automaton–finite element (CA-FE) model was developed to predict the grain structure and texture of aluminum strips fabricated via TRC. Both pure Al and AA7075 alloys were cast under identical conditions using a pilot-scale horizontal twin-roll caster, and their microstructures were characterized experimentally. The developed model incorporated a Gaussian nucleation distribution function and an equivalent binary approach to account for the solidification behavior of multicomponent alloys. The CA-FE simulation results successfully reproduced the key aspects of solidification, grain structure, and texture evolution of TRC strips. The predicted temperature distribution and solid fraction evolution showed distinct differences between the alloys, with pure Al forming columnar grains and AA7075 developing a fully equiaxed structure, which closely matched the experimental findings. Additionally, texture analysis using inverse pole figures (IPFs) and pole figures (PFs) revealed a clear <001> orientation in pure Al, whereas AA7075 exhibited a random texture, both of which were well captured by the CA-FE model. The findings indicate that the developed model offers a reliable prediction of the solidification microstructure and texture evolution in TRC strips, making it a valuable tool for optimizing continuous casting processes. Full article
(This article belongs to the Special Issue Development of Advanced Aluminum and Magnesium Alloys: Microstructure, Mechanical Properties and Processing—2nd Edition)
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