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Metals
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Hot Oxidation and Corrosion of High Performance Metallic Alloys
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Hot Oxidation and Corrosion of High Performance Metallic Alloys

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 8067

Special Issue Editors

Prof. Patrice Berthod

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Guest Editor
Institut Jean Lamour, University of Lorraine, 2 allée André Guinier, Campus ARTEM 54000 Nancy, FRANCE
Interests: chemistry of solids; mechanical behavior of metallic alloys; microstructure–properties relationships; ferrous and non–ferrous alloys; high temperature oxidation phenomena & kinetics; microstructure deterioration
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Christophe Rapin

E-Mail Website
Guest Editor
Faculty of Sciences and Technologies (FST) ,Université de Lorraine, Nancy, France
Interests: chemical reactivity of solids; hot corrosion of metallic materials by molten glasses and molten salts; electrochemical characterization devices

Special Issue Information

Dear Colleague,

Almost all metals and metallic alloys are constantly threatened by dry or wet corrosion. At temperatures of 400 °C and higher, failures of metallic components may be due to, or accelerated by, chemical reactions with the work environment or the worked material. High-temperature oxidation, metal dusting, and other degradations may be induced by the exposure to air or complex gaseous mixtures involving various species (combustion gases, carbon and sulfur oxides, chlorine and hydrogen chlorides, water vapor, etc.). Hot corrosion may result from the contact with various liquids (molten salts, CMAS, glasses, and even metals). Slag and scoria may be also responsible for the degradation of alloys in high-temperature conditions. Combined or not with mechanical stresses, hot oxidation and corrosion affecting steels, superalloys, and refractory alloys play an important role in the sustainability of components made of these alloys and used in the hottest parts of aeronautical and power generation turbines, solid oxide fuel cells, or in the processes exploited in the petroleum, glass-forming, and waste treatment industries, for example.

The latest evolutions in metallic alloy compositions (e.g., recently developed superalloys and refractory alloys, high entropy alloys), in fabrication methods (e.g., additive manufacturing, new types of protective coatings), and in use conditions (e.g., increased temperatures and more complex corrosive fluids) may lead to new hot oxidation/corrosion results. This Special Issue of Metals aims to disseminate these results by giving them high visibility in the scientific and industrial communities.

Other recent results concerning alloys which are more classically elaborated and used, new findings concerning oxidation and corrosion phenomena, the resulting products and subsurface changes, and modelling will also be welcomed.

Prof. Patrice Berthod
Prof. Christophe Rapin
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. Metals 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

  • superalloys
  • refractory alloys
  • steels
  • high-temperature oxidation and corrosion
  • oxidant gases and gaseous mixtures
  • corrosive molten substances

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Published Papers (3 papers)

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Research

13 pages, 6862 KiB  
Article
Kinetic and Metallography Study of the Oxidation at 1250 °C of {Co+Ni}-Based Superalloys Containing Ti to Form MC Carbides
by Patrice Berthod, Synthia Annick Ozouaki Wora, Lionel Aranda, Ghouti Medjahdi and Erwan Etienne
Metals 2022, 12(1), 10; https://doi.org/10.3390/met12010010 - 22 Dec 2021
Cited by 5 | Viewed by 2462
Abstract
Six conventionally cast chromium-rich titanium-containing alloys based on cobalt and nickel with various Co/Ni ratios were considered. They were tested in oxidation in air at 1250 °C for 70 h in a thermo-balance. The mass gain curves were exploited to specify different types [...] Read more.
Six conventionally cast chromium-rich titanium-containing alloys based on cobalt and nickel with various Co/Ni ratios were considered. They were tested in oxidation in air at 1250 °C for 70 h in a thermo-balance. The mass gain curves were exploited to specify different types of kinetic constants as well as several parameters characterizing the oxide spallation occurring during cooling. The obtained results show that, the higher the Ni content, the slower the mass gain and the better the quality of the protective external chromia scale. Secondly, no dependence of the oxide spallation characteristics on the Co content was clearly noted. Globally, the isothermal oxidation behavior becomes better when Ni is more and more present at the expense of Co. Titanium seems to be playing a particular role in the process of oxidation. It notably leads to the presence of an external thin TiO2 continuous scale beyond the chromia scale. The thermogravimetry records were numerically treated to determine the parabolic constant and the chromia volatilization constant. The values of these constants evidenced a double tendency: chromia growth acceleration and chromia volatilization slow-down. These trends are to be confirmed and further investigated. Full article
(This article belongs to the Special Issue Hot Oxidation and Corrosion of High Performance Metallic Alloys)
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13 pages, 11789 KiB  
Article
Corrosion of N10276 in a H2S, HCl, and CO2 Containing Atmosphere at 480 °C and 680 °C
by Manuela Nimmervoll, Gregor Mori, Edith Bucher, Alexander Schmid and Roland Haubner
Metals 2021, 11(11), 1817; https://doi.org/10.3390/met11111817 - 12 Nov 2021
Cited by 2 | Viewed by 2269
Abstract
In several industrial processes, metallic materials suffer from chlorine- and sulfur-induced high-temperature corrosion. In previous studies, several steels have been tested at laboratory scale in a simulated gas atmosphere of a pyrolysis process of anthropogenic resources. In this paper, we propose a model [...] Read more.
In several industrial processes, metallic materials suffer from chlorine- and sulfur-induced high-temperature corrosion. In previous studies, several steels have been tested at laboratory scale in a simulated gas atmosphere of a pyrolysis process of anthropogenic resources. In this paper, we propose a model on the course of corrosion in a H2S and HCl-containing atmosphere for N10276, which contains, besides iron, chromium, and nickel, also molybdenum as main alloying element. Bearing in mind the impact of the main alloying elements, as well as thermodynamic considerations and kinetic effects, the corrosion behavior of N10276 in a H2S and HCl-containing atmosphere at 480 °C and 680 °C can be explained. In addition, the corrosion behavior of N10276 is compared with earlier tested Fe-Cr-Ni alloys and differences in the corrosion behavior are stated within this paper. Full article
(This article belongs to the Special Issue Hot Oxidation and Corrosion of High Performance Metallic Alloys)
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14 pages, 4124 KiB  
Article
Oxidation Behavior of Maraging 300 Alloy Exposed to Nitrogen/Water Vapor Atmosphere at 500 °C
by Mauro Andres Cerra Florez, Gemma Fargas Ribas, Jorge Luiz Cardoso, Antonio Manuel Mateo García, Joan Josep Roa Rovira, Moises Bastos-Neto, Hamilton Ferreira Gomes de Abreu and Marcelo José Gomes da Silva
Metals 2021, 11(7), 1021; https://doi.org/10.3390/met11071021 - 24 Jun 2021
Cited by 3 | Viewed by 2211
Abstract
Aging heat treatments in maraging steels are fundamental to achieve the excellent mechanical properties required in several industries, i.e., nuclear, automotive, etc. In this research, samples of maraging 300 alloy were aged using a novel procedure that combines different steps with two atmospheres [...] Read more.
Aging heat treatments in maraging steels are fundamental to achieve the excellent mechanical properties required in several industries, i.e., nuclear, automotive, etc. In this research, samples of maraging 300 alloy were aged using a novel procedure that combines different steps with two atmospheres (nitrogen and water vapor) for several hours. The oxidized surface layer was chemical, microstructural and micromechanically characterized. Due to the thermodynamic and kinetic conditions, these gases reacted and change the surface chemistry of this steel producing a thin iron-based oxide layer of a homogeneous thickness of around 500 nm. Within the aforementioned information, porosity and other microstructural defects showed a non-homogeneous oxide, mainly constituted by magnetite, nickel ferrite, cobalt ferrite, and a small amount of hematite in the more external parts of the oxide layer. In this sense, from a chemical point of view, the heat treatment under specific atmosphere allows to induce a thin magnetic layer in a mixture of iron, nickel, and cobalt spinel ferrites. On the other hand, the oxide layer presents an adhesive force 99 mN value that shows the capability for being used for tribological applications under sliding contact tests. Full article
(This article belongs to the Special Issue Hot Oxidation and Corrosion of High Performance Metallic Alloys)
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