Wear- and Corrosion-Resistant Cermet Coatings

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1420

Special Issue Editor


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Guest Editor
Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing 100124, China
Interests: nanostructure; cemented carbides; cermet coating; wear; corrosion

Special Issue Information

Dear Colleagues,

Cermet coatings deposited on metallic components have attracted tremendous attention owing to their capability of protecting the substrate from surface wear and corrosion. The coated components can, thus, have a remarkably extended service life. In the past decades, various coating materials including carbides-, nitrites- and oxide-based cermets; advanced fabrication techniques, such as thermal/cold spraying, PVD/CVD, laser cladding, and plasma transferred arc surfacing; as well as many post-treatment processes, have been developed. These coating materials and preparation technology have been successfully applied in industries. However, with the increasing demand on metallic materials applied to extreme environments, e.g., elevated temperature, oxidative atmosphere, strong impact, and abrasive conditions, it is very necessary to look for breakthroughs in current coating materials or viable alternatives. Generally, the development of novel material system for coating applications, the innovation in coating preparation technology, the effective integration of starting materials and deposition processes, and the discovery of new wear and corrosion resistance mechanisms are critically required.

For this Special Issue, we invite high-quality contributions with innovative and significant findings and experiences in the field of cermet coatings. The topics of interest include, but are not limited to, the above-mentioned aspects. Some bulk cermet materials that have excellent mechanical properties and can potentially be used for resisting wear and corrosion are welcomed as well.

Dr. Haibin Wang
Guest Editor

Manuscript Submission Information

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Keywords

  • cermet
  • metal–ceramic composite
  • film
  • coating
  • bulk material
  • tribological property
  • corrosion resistance
  • performance enhancement mechanisms

Published Papers (1 paper)

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Research

18 pages, 5976 KiB  
Article
Erosion Performance of TiAlSiN Coatings Prepared by High-Power Pulsed Magnetron Sputtering
by Hua Li, Liuhe Li, Duoduo Li, Ling Tang, Yang Luo, Guang Li, Yuehan Wu, Guodong Li, Yi Xu, Mingyue Han, Jiabin Gu, Kai Huang, Pengbo Feng and Xiaolei Xu
Metals 2023, 13(7), 1306; https://doi.org/10.3390/met13071306 - 21 Jul 2023
Viewed by 932
Abstract
Erosion seriously threatens the safety of high-speed rotating mechanical components in very harsh service environments, particularly for lightweight titanium alloy matrix material. In order to improve the erosion resistance of titanium alloy, TiAlSiN coatings with different phase compositions are deposited on TC6 titanium [...] Read more.
Erosion seriously threatens the safety of high-speed rotating mechanical components in very harsh service environments, particularly for lightweight titanium alloy matrix material. In order to improve the erosion resistance of titanium alloy, TiAlSiN coatings with different phase compositions are deposited on TC6 titanium alloy using a high-power pulse magnetron sputtering discharge (HPPMS) system under various discharge voltages. The componential and microstructural evolution as well as mechanical properties of the TiAlSiN coatings are evaluated by X-ray diffraction, scanning electron microscopy, and nanoindentation, respectively. The erosion performance relative to titanium alloy is investigated by a sand blasting tester. With the increase in discharge voltage from −500 to −600 V, the peak of discharge current increases from 105 to 225 A. The prepared TiAlSiN coatings show a shift of the preferred crystallographic orientation from (220) to (200), but all of them have a dense nanocomposite structure. Their hardness (H) and elastic modulus (E) gradually increase before decreasing, arriving at maximum values of 35.34 and 360.5 GPa at −570 V. The erosion resistance of the TiAlSiN coatings dependent on the discharge voltage is consistent with the H/E ratio change. The TiAlSiN coatings prepared at −560 V exhibit the optimal erosion resistance, which is 15 times that of the TC6 substrate. The erosion behavior of the coatings is positively correlated with their hardness and toughness. Adjusting the discharge voltage of the HPPMS pulse is finally proved to be an effective way of tailoring the coating phase compositions to improve the erosion resistance of titanium alloy. Full article
(This article belongs to the Special Issue Wear- and Corrosion-Resistant Cermet Coatings)
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