Laser Technology of Thin Film and Coatings

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Laser Coatings".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 952

Special Issue Editors


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Guest Editor
School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101, China
Interests: laser metal deposition; surface engineering

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Guest Editor
School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101, China
Interests: additive manufacturing (3D printing); additive and subtractive composite intelligent manufacturing; remanufacturing

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101, China
Interests: remanufacturing and additive manufacturing technology

E-Mail Website
Guest Editor
School of Mechanical and Electrical Engineering, Shandong Jianzhu University, Jinan 250101,China
Interests: manufacturing engineering; coatings; heat and mass transfer

Special Issue Information

Dear Colleagues,

Laser metal deposition, as an advanced material surface modification technology, provides a feasible solution for the protection and remanufacturing of damaged parts. This method is usually used to generate more functional protective layers and repair damaged or worn surfaces. This method can form a metallurgical bond with a high bonding strength and low dilution rate between the cladding layer and the base material, thereby enhancing the corrosion resistance and wear resistance of the metal, which can not only reduce production costs and extend replacement cycles, but also avoid the production technology problems of difficult-to-process materials in extreme thermal, mechanical, chemical, and nuclear environments. However, the performance of laser metals and alloy deposition coatings under these extreme conditions must be understood.

In addition, defects such as cracks and pores in the coating also hinder the further promotion and application of this technology. Therefore, it is necessary to explore the mechanism and inhibition method of cracking in the laser metal deposition layer.

  This scope of this Special Issue will serve as a forum for papers in the following concepts:

  • Coatings produced by laser processes;
  • Performance of coating and film in extreme thermal, mechanical, chemical, and/or nuclear environments;
  • Microstructure evolution and associated changes in mechanical properties associated with exposure to extreme conditions;
  • Computer modeling, simulation to predict coating properties, performance, durability and reliability in service environments;
  • A detailed characterization of cracking mechanisms in coatings during laser processing;
  • A fundamental understanding of cracking mechanisms to control or eliminate cracking in the laser metal deposition process.

Dr. Kang Qi
Dr. Yanhua Zhao
Dr. Jiyu Du
Dr. Guangchao Hao
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

  • laser metal deposition
  • advanced materials
  • coatings
  • mechanical properties
  • microstructure

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Published Papers (1 paper)

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Research

25 pages, 10008 KiB  
Article
Enhanced Erosion Resistance of Cr3C2-TiC-NiCrCoMo Coatings: Experimental and Numerical Investigation of Erosion Mechanisms
by Jiawei Wang, Linwen Wang, Haiyang Lu, Jiyu Du, Xiaoxia Qi, Laixiao Lu, Yanhua Zhao, Ziwu Liu and Weiyun Meng
Coatings 2025, 15(3), 294; https://doi.org/10.3390/coatings15030294 - 3 Mar 2025
Viewed by 646
Abstract
To enhance the erosion resistance of typical Cr3C2-NiCr coatings, the Cr3C2-TiC-NiCrCoMo (NCT) coating was developed and deposited by high-velocity oxygen fuel spray (HVOF). The erosion resistance and mechanisms of the coating were investigated using numerical [...] Read more.
To enhance the erosion resistance of typical Cr3C2-NiCr coatings, the Cr3C2-TiC-NiCrCoMo (NCT) coating was developed and deposited by high-velocity oxygen fuel spray (HVOF). The erosion resistance and mechanisms of the coating were investigated using numerical simulations and experimental methods. A comprehensive calculation model for the coating erosion rate was developed, incorporating factors such as the properties of the eroded particles, the characteristics of the coating, and the conditions of erosion. The erosion rate of the NCT coating was calculated and predicted by the model, and the accuracy of these predictions was validated through experiments. The NCT1 (87.3 wt.% Cr3C2-NiCrCoMo/3 wt.% TiC)coating demonstrated exceptional erosion resistance compared to the original Cr3C2-NiCrCoMo (NCC) coatings with reduced erosion rates of 23.64%, 20.45%, and 16.22% at impact angles of 30°, 60°, and 90°, respectively. The addition of nano-TiC particles into the NCT1 coating enhances the yield strength, impeding the intrusion of erosive particles at low angles and supporting the metal binder phase, eventually reducing fatigue fracture under repeated erosion. However, excessive nano-TiC content degrades the erosion resistance due to the increase in pores and cracks within the coating. Full article
(This article belongs to the Special Issue Laser Technology of Thin Film and Coatings)
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