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Advances in Coatings on Metals for Corrosion Protection

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

Deadline for manuscript submissions: 20 November 2025 | Viewed by 1349

Special Issue Editor


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Guest Editor
School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
Interests: nuclear fuels; metallic fuels; ATF coatings; fission gas behaviors; irradiation effects

Special Issue Information

Dear Colleagues,

Corrosion is one of the key challenges faced by a variety of engineering materials. In nuclear reactor systems, fuel cladding materials and structural materials are under constant corrosion attacks by coolants like water, lead-bismuth eutectic, molten salt, etc. In aerospace engineering scenarios, corrosion is also one of the major challenging issues. Protection from corrosion in metals has attracted widespread attention from both academia and industry.

Coating technology has emerged as a potential game-changer in dealing with corrosion related to metallic materials. For example, effective coatings can bring oxidation corrosion kinetics down by an order of magnitude or more. However, coating adherence to the substrate materials and coating behaviors under complex working environments need to be carefully examined until coating technology can be applied to any engineering scenario. In a peculiar application field, such as in nuclear reactors, coatings need to survive extreme conditions such as neutron irradiations. In another engineering scenario, like aerospace engineering, coatings usually are subject to high temperatures. All these harsh environments put strict demands on the properties of coatings.

This Special Issue seeks scientific contributions about the development of coating technology in solving corrosion-related problems on metals in real engineering environments. Both experimental studies and simulation investigations on corrosion mechanisms, evolution of adherence properties, and failure analyses of coatings, etc., are welcome.

Prof. Dr. Di Yun
Guest Editor

Manuscript Submission Information

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Keywords

  • coatings
  • corrosion
  • metals
  • adherence
  • failure

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Published Papers (1 paper)

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Research

10 pages, 5534 KB  
Article
The Effect of Novel Support Layer by Titanium-Modified Plasma Nitriding on the Performance of AlCrN Coating
by Jiqiang Wu, Longchen Zhao, Jianbin Ji, Fei Sun, Jing Hu, Xilang Liu, Dandan Wang, Xulong An, Xiangkui Liu and Wei Wei
Materials 2025, 18(17), 4186; https://doi.org/10.3390/ma18174186 - 6 Sep 2025
Viewed by 820
Abstract
In order to obtain a gradient coating with excellent performance, novel titanium-modified plasma nitriding was primarily used as a support layer for the PVD coating of 38CrMoAl steel. The samples were subjected to titanium-modified plasma nitriding by placing sponge titanium around the samples, [...] Read more.
In order to obtain a gradient coating with excellent performance, novel titanium-modified plasma nitriding was primarily used as a support layer for the PVD coating of 38CrMoAl steel. The samples were subjected to titanium-modified plasma nitriding by placing sponge titanium around the samples, resulting in a thicker ductile diffusion layer and a thinner and denser compound layer. The research results showed that this thinner, denser compound layer formed by titanium-modified plasma nitriding provides stronger support for the AlCrN coating and thus bring about better performance compared to a conventional plasma nitrided layer, with the adhesion strength increasing from 16.8 N to 29.4 N, which is 42.8% higher than the conventional PN compound layer; the surface hardness increasing from 3650 HV0.05 to 3780 HV0.05; the friction coefficient and wear rate reducing from 0.64 and 5.4849 × 10−6 mm3/(N·m) to 0.61 and 2.3060 × 10−6 mm3/(N·m), respectively; and the wear performance improving by 137.85%. Additionally, the corrosion potential increased from −979.2 mV to −711.51 mV, and the value of impedance increased from 1.5515 × 104 Ω·cm2 to 9.4518 × 104 Ω·cm2, resulting in a significant improvement in corrosion resistance. In all, the novel support layer by titanium-modified plasma nitriding can provide much better support for AlCrN coating and thus bring about excellent enhanced performances, including adhesion strength and wear and corrosion resistance. Therefore, it is of great value in the PVD coating field, and it can provide valuable insights into gradient coating technology. Full article
(This article belongs to the Special Issue Advances in Coatings on Metals for Corrosion Protection)
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