Processing, Modeling and Characterization of Advanced Metallic Materials

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 2484

Special Issue Editors

Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue Kowloon, Hong Kong, China
Interests: lightweight alloys; 3D printing; plastic processing; microstructure characterization; micromechanics
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Interests: light-weight alloys; plastic processing; precision forming; microstructure; texture property; modelling and prediction
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Guest Editor Assistant
School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
Interests: hot deformation; crystal plasticity finite element; damage model

Special Issue Information

Dear Colleagues,

Metallic components are widely used in various industries owing to their unique characteristics, such as their malleability, recyclability, and robust mechanical properties, as well as their excellent thermal and electrical conductivity. The geometry of metallic components can be tailored through a variety of advanced processing techniques. Moreover, the performances of metallic components can be modified through alloy composition design, microstructure control and processing optimization. Given the tremendous importance of metallic components, the Special Issue will provide a wide array of original research articles on the recent development of new alloys, processing techniques and characterization methods for metallic materials, as well as the simulation and modeling of metallic materials.

The topics covered in “Processing, modeling and characterization of advanced metallic materials” include, but are not limited to, the following:

  • The development of ferrous alloys and steels;
  • Non-ferrous metals and alloys, including Mg alloys, Al alloys and Ti alloys and their intermetallics;
  • Particle- or fiber-reinforced metal matrix composites;
  • Advanced processing techniques for metallic materials, including plastic forming, casting, joining, additive manufacturing, etc.;
  • The microstructure characterization for metallic materials;
  • The physical properties and mechanical behaviors of metallic materials;
  • The simulation and modeling of metallic materials.

Dr. Xueze Jin
Dr. Wenchen Xu
Guest Editors

Dr. He Wu
Guest Editor Assistant

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. Coatings 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

  • metals and alloys
  • intermetallics and metal matrix composites
  • advanced processing techniques
  • characterization methods
  • microstructure and mechanical properties
  • simulation and modeling

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Published Papers (3 papers)

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Research

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14 pages, 5870 KiB  
Article
The Effect of Pre-Deformation on the Microstructure and Hardness of Al-Zn-Mg-Cu Alloy
by Hongchao Zhai, Lei Zhang, Shuohao Xing, Huiying Hou, Zhijie Wang and Sha Liu
Coatings 2025, 15(3), 283; https://doi.org/10.3390/coatings15030283 - 28 Feb 2025
Viewed by 411
Abstract
In this paper, hot rolling pre-deformation treatment was applied to an Al-Zn-Mg-Cu alloy after solid solution treatment, followed by peak aging treatment. The effect of the degree of deformation was discussed. The microstructure of the alloy after treatment was observed and the mechanical [...] Read more.
In this paper, hot rolling pre-deformation treatment was applied to an Al-Zn-Mg-Cu alloy after solid solution treatment, followed by peak aging treatment. The effect of the degree of deformation was discussed. The microstructure of the alloy after treatment was observed and the mechanical properties were tested. The results indicate that after hot rolling pre-deformation, high-density dislocations are introduced within the grains of the Al-Zn-Mg-Cu alloy, and the dislocation density gradually increases with the degree of deformation. At the same time, with the increase of rolling deformation, the alloy hardness first increases and then decreases. When the deformation is 40%, the alloy hardness reaches a peak value of 101.7 HV. In the subsequent aging process, with the increase of deformation, the time required to reach peak aging is gradually shortened, and at 40% deformation, the alloy hardness reaches a peak of 99.7 HV after 12 h of aging. Moreover, the dislocations generated by pre-deformation can become entangled around the grain boundary and the coarse quenching precipitated phase, providing nucleation particles for the subsequent precipitation of the strengthened phase, effectively improving the precipitation strengthening effect of the alloy during aging, and thus improving the hardness of the alloy at the peak aging state. This study provides a research idea for improving the hardness of the alloy and expands the application of the deformation aging process in Al-Zn-Mg-Cu alloys. Full article
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14 pages, 6557 KiB  
Article
Microstructure and Mechanical Properties of Steel/Lead Bi-Metal Tubes Produced by Magnetic Pulse Welding
by Chuan Yang, Rui Jiang, He Wu and Xiaolei Chen
Coatings 2024, 14(12), 1542; https://doi.org/10.3390/coatings14121542 - 10 Dec 2024
Viewed by 624
Abstract
According to the binary phase diagram, Fe-Pb are immiscible under equilibrium conditions and are hard to metallurgically bond. To solve this problem, in this work, the instantaneous high-temperature and high-pressure environments generated during electromagnetic pulse welding (MPW) were utilized to achieve the miscibility [...] Read more.
According to the binary phase diagram, Fe-Pb are immiscible under equilibrium conditions and are hard to metallurgically bond. To solve this problem, in this work, the instantaneous high-temperature and high-pressure environments generated during electromagnetic pulse welding (MPW) were utilized to achieve the miscibility of Fe and Pb, enabling the effective bonding of Fe-Pb bi-metallic tubes. The effects of MPW parameters, including discharge voltage and radial gap, on interfacial bond strength and microstructure were analyzed. Optimal bonding occurred at 10.5 kV discharge voltage and a 1.6 mm radial gap, forming a continuous transition layer. Lower energy input reduced bond strength, while excessive energy caused shear deformations. Microstructure analysis revealed that the diffusion zone significantly enhanced the bond strength. Measured bond strength values were 7.6 MPa at optimal conditions. These results demonstrate that MPW is a feasible method for fabricating Fe-Pb bi-metal tubes, offering a promising way for immiscible metals metallurgical welding. Full article
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Review

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22 pages, 4287 KiB  
Review
Research Progress of Cu-Ni-Si Series Alloys for Lead Frames
by Huan Yan, Honglei Hu, Lei Li, Wen Huang and Chunlei Li
Coatings 2025, 15(1), 91; https://doi.org/10.3390/coatings15010091 - 15 Jan 2025
Viewed by 773
Abstract
This paper reviews the research progress of Cu-Ni-Si alloy as a lead frame material for ICs. Cu-Ni-Si alloy is considered a strong candidate for lead frame materials due to its excellent mechanical properties and adequate electrical conductivity. The types and properties of Cu-Ni-Si [...] Read more.
This paper reviews the research progress of Cu-Ni-Si alloy as a lead frame material for ICs. Cu-Ni-Si alloy is considered a strong candidate for lead frame materials due to its excellent mechanical properties and adequate electrical conductivity. The types and properties of Cu-Ni-Si alloys are then discussed in detail, emphasizing strength and conductivity as two key indicators for evaluating the properties of Cu-Ni-Si alloys, as well as the challenges posed by their inverse correlation. The preparation methods of Cu-Ni-Si alloy, including conventional melting, vacuum melting, and jet forming, are also discussed, and the effects of different casting techniques on the alloy’s properties are analyzed. Furthermore, the conductivity and strengthening mechanisms of Cu-Ni-Si alloy, including solid solution strengthening, second phase strengthening, and deformation strengthening, are discussed. The effects of the Ni-Si atomic ratio, trace elements, and rare earth elements on the alloy’s properties are also discussed. Finally, the current research status of Cu-Ni-Si alloy is summarized, and future research directions are identified, including the development of new preparation technologies, establishment of systematic databases, and promotion of green manufacturing and sustainable alloy development. Full article
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