Advances in High-Entropy Alloy Coatings: Preparation, Properties, and Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Corrosion, Wear and Erosion".

Deadline for manuscript submissions: 20 December 2025 | Viewed by 1598

Special Issue Editors


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Guest Editor
School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: high-entropy alloy; laser additive manufacturing; multi-energe field assist; surface strengthening
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: laser cladding; high-entropy alloy; surface engineering; microstructure; tribology behavior; wear
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: laser cladding; impact wear; wear resistant coating; impact strengthening; hardening behavior
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The remarkable properties of high-entropy alloys (HEAs), which include exceptional strength, enhanced hardness, and superior thermal stability, are redefining the potential of advanced coating materials. HEAs, characterized by their multi-principal element composition, offer a paradigm shift in coating technologies that may contribute to the advancement of surface engineering applications. This Special Issue, "Advances in High-Entropy Alloy Coatings: Preparation, Properties, and Applications", invites contributions that highlight the latest developments in HEA coatings, including their preparation, characterization, performance, and application.

The scope of this Special Issue encompasses a broad spectrum of topics and research directions, including but not limited to:

  • The synthesis and preparation methods of HEA coatings;
  • Advanced characterization techniques for exploring the microstructure and composition of HEA coatings;
  • The mechanical, chemical, and thermal properties of HEA coatings;
  • Performance evaluation of HEA coatings in extreme environments;
  • Applications of HEA coatings in industries such as aerospace, automotive, and energy;
  • Novel approaches to enhance the functional performance of HEA coatings;
  • Interdisciplinary studies involving the use of HEA coatings for environmental and sustainable applications.

We welcome original research articles that provide new insights into the preparation, properties, and applications of HEA coatings. The integration of experimental and computational studies to further our understanding of the intrinsic characteristics of HEAs will particularly be appreciated.

This Special Issue aims to serve as a conduit for scientists and engineers to disseminate their cutting-edge research, fostering the exchange of ideas and catalyzing further advancements in the field of high-entropy alloy coatings.

Dr. Jingbin Hao
Dr. Hao Liu
Dr. Haifeng Yang
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 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

  • high-entropy alloy
  • laser cladding
  • additive manufacturing
  • multi-energe field assist
  • surface strengthening
  • tribology behavior
  • impact wear
  • corrosion protection
  • composite coatings.

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Published Papers (1 paper)

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Research

13 pages, 4653 KiB  
Article
Research on Process Control of Laser-Based Direct Energy Deposition Based on Real-Time Monitoring of Molten Pool
by Haoda Wang, Jingbin Hao, Mengsen Ding, Xuanyu Zheng, Haifeng Yang and Hao Liu
Coatings 2024, 14(9), 1131; https://doi.org/10.3390/coatings14091131 - 3 Sep 2024
Cited by 1 | Viewed by 1036
Abstract
In the process of laser-based direct energy deposition (DED-LB), the quality of the deposited layer will be affected by the process parameters and the external environment, and there are problems such as poor stability and low accuracy. A molten pool monitoring method based [...] Read more.
In the process of laser-based direct energy deposition (DED-LB), the quality of the deposited layer will be affected by the process parameters and the external environment, and there are problems such as poor stability and low accuracy. A molten pool monitoring method based on coaxial vision is proposed. Firstly, the molten pool image is captured by a coaxial CCD camera, and the geometric features of the molten pool are accurately extracted by image processing techniques such as grayscale, median filtering noise reduction, and K-means clustering combined with threshold segmentation. The molten pool width is accurately extracted by the Canny operator combined with the minimum boundary rectangle method, and it is used as the feedback of weld pool control. The influence of process parameters on the molten pool was further analyzed. The results show that with an increase in laser power, the width and area of the molten pool increase monotonously, but exceeding the material limit will cause distortion. Increasing the scanning speed will reduce the size of the molten pool. By comparing the molten pool under constant power mode and width control mode, it is found that in width control mode, the melt pool width fluctuates less, and the machining accuracy is improved, validating the effectiveness of the real-time control system. Full article
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