Cold Spray Deposition of Coatings, Novelties and Applications

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

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 2618

Special Issue Editor


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Guest Editor
Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, WB, India
Interests: surface engineering; thermal spraying; plasma spraying; coating; alumina; WC-Co; wear; tribology

Special Issue Information

Dear Colleagues,

Cold spraying is a recent developments in thermal spraying. There are fundamental differences that make cold-sprayed layers distinct from those produced using other thermal spraying processes. The process renders itself suitable for producing coatings free from oxidation, phase transformation and grain growth. It is useful for oxidation-sensitive materials, as well.

This Special Issue will serve as a forum for knowledge dissemination in the following frontiers:

  • Recent developments in numerical modelling and simulation of cold spraying process;
  • Cold spray as a tool for additive manufacturing;
  • Cold spray for oxidation sensitive materials;
  • Cold spray in mass production.

Prof. Dr. Partha P. Bandyopadhyay
Guest Editor

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

  • cold spraying
  • extreme environment
  • additive manufacturing
  • numerical modelling of cold spraying

Published Papers (2 papers)

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Research

11 pages, 10326 KiB  
Article
Microstructure and Properties of FeCrMnxAlCu High-Entropy Alloys and Coatings
by Kai Ma, Li Feng and Zhipeng Wang
Coatings 2023, 13(8), 1401; https://doi.org/10.3390/coatings13081401 - 09 Aug 2023
Viewed by 909
Abstract
FeCrMnxAlCu (x = 0.5, 1, 1.5, and 2) high-entropy alloys (HEA) and coatings were prepared through vacuum arc melting and cold spray-assisted induction remelting processes. This study investigated the effect of different Mn contents on the microstructure and wear resistance of [...] Read more.
FeCrMnxAlCu (x = 0.5, 1, 1.5, and 2) high-entropy alloys (HEA) and coatings were prepared through vacuum arc melting and cold spray-assisted induction remelting processes. This study investigated the effect of different Mn contents on the microstructure and wear resistance of HEAs and coatings. The results showed that the high-entropy FeCrMnxAlCu alloy prepared through vacuum arc melting and cold spray-assisted induction remelting processes comprised simple body-centered cubic and face-centered cubic phases with dendritic + interdendrite structures. The coating of the prepared alloys exhibited superior performance compared with the cast alloy. In addition, the hardness of the FeCrMnxAlCu HEA coatings synthesized through induction remelting was 1.4 times higher than that of the cast FeCrMnxAlCu HEA. Moreover, the wear rate of induction-remelted produced HEA coating was reduced by 24% compared with that of vacuum arc-melted produced HEA. The hardness of the induction-remelted produced FeCrMnxAlCu HEA coating initially increased and then decreased with increasing Mn contents. At x = 1, the hardness of FeCrMnAlCu HEA coating reached a maximum value of 586 HV, with a wear rate of 2.95 × 10−5 mm3/(N·m). The main wear mechanisms observed in the FeCrMnxAlCu HEA coatings were adhesive, abrasive, and oxidative. Full article
(This article belongs to the Special Issue Cold Spray Deposition of Coatings, Novelties and Applications)
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19 pages, 10291 KiB  
Article
Characterization and High-Temperature Oxidation Behavior of Ni–20Cr Deposits Fabricated by Cold Spray-Based Additive Manufacturing
by Parminder Singh, Surinder Singh, Harpreet Singh, Eklavya Calla, Harpreet Singh Grewal, Harpreet Singh Arora and Anand Krishnamurthy
Coatings 2023, 13(5), 904; https://doi.org/10.3390/coatings13050904 - 11 May 2023
Cited by 3 | Viewed by 1400
Abstract
Hot corrosion is a critical problem in a wide range of high-temperature applications. Ni–20Cr alloy is frequently used in such applications owing to its good hot-corrosion resistance. In the current work, thick Ni–20Cr plates in a thickness range of 6–10 mm were fabricated [...] Read more.
Hot corrosion is a critical problem in a wide range of high-temperature applications. Ni–20Cr alloy is frequently used in such applications owing to its good hot-corrosion resistance. In the current work, thick Ni–20Cr plates in a thickness range of 6–10 mm were fabricated using cold spray-based additive manufacturing (CSAM). High-pressure cold spraying was used with nitrogen as the propellant gas. Pre- (substrate heating, SH) and post-heat treatments (hot isostatic pressing, HIP) were also performed to comprehend the changes in the deposit properties. The deposits were subjected to microstructural and mechanical characterization to explore the potential of cold spraying for CSAM of Ni–20Cr standalone products. The cold-sprayed plates were successfully developed without any oxide formation. HIP treatment was found to be useful to reduce porosity. The cold-sprayed substrate-heated Ni–20Cr deposits exhibited excellent oxidation resistance at a high temperature of 900 °C. Full article
(This article belongs to the Special Issue Cold Spray Deposition of Coatings, Novelties and Applications)
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