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Title Critical Raw Materials Saving by Protective Coatings under Extreme Conditions: A Review of Last Trends in Alloys and Coatings for Aerospace Engine Applications
Authors Grilli, M.L.
Valerini, D.
Slobozeanu, A.E.
Postolnyi, Bohdan Oleksandrovych
Balos, S.
Rizzo, A.
Piticescu, R.R.
Keywords critical raw materials
protective coatings
thermal barrier coatings
aerospace engine blades
Ni-superalloys
Ti-based alloys
Type Article
Date of Issue 2021
URI https://essuir.sumdu.edu.ua/handle/123456789/83598
Publisher MDPI
License Creative Commons Attribution 4.0 International License
Citation Grilli, M.L.; Valerini, D.; Slobozeanu, A.E.; Postolnyi, B.O.; Balos, S.; Rizzo, A.; Piticescu, R.R. Critical Raw Materials Saving by Protective Coatings under Extreme Conditions: A Review of Last Trends in Alloys and Coatings for Aerospace Engine Applications. Materials 2021, 14, 1656. https://doi.org/10.3390/ ma14071656
Abstract Several applications, where extreme conditions occur, require the use of alloys often containing many critical elements. Due to the ever increasing prices of critical raw materials (CRMs) linked to their high supply risk, and because of their fundamental and large utilization in high tech products and applications, it is extremely important to find viable solutions to save CRMs usage. Apart from increasing processes’ efficiency, substitution, and recycling, one of the alternatives to preserve an alloy and increase its operating lifetime, thus saving the CRMs needed for its manufacturing, is to protect it by a suitable coating or a surface treatment. This review presents the most recent trends in coatings for application in high temperature alloys for aerospace engines. CRMs’ current and future saving scenarios in the alloys and coatings for the aerospace engine are also discussed. The overarching aim of this paper is to raise awareness on the CRMs issue related to the alloys and coating for aerospace, suggesting some mitigation measures without having the ambition nor to give a complete overview of the topic nor a turnkey solution.
Appears in Collections: Наукові видання (ЕлІТ)

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