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Corrosion of Nonferrous Metals and Their Alloys
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Corrosion of Nonferrous Metals and Their Alloys

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

Deadline for manuscript submissions: closed (31 October 2021)

Special Issue Editor

Dr. Wojciech J. Nowak

E-Mail Website
Guest Editor
Department of Materials Science, Faculty of Mechanical Engineering and Aeronautics,. Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, Poland
Interests: materials science; engineering, chemistry; chemical engineering; Ni-base alloys; high-temperature corrosion; oxidation resistant coatings; TBC systems

Special Issue Information

Dear Colleagues,

The Special Issue “Corrosion of Nonferrous Metals and Their Alloys” will address advances in materials science, processing, characterization, technology development, and corrosion testing of various nonferrous metals and their alloys. Presently, the most commonly used alloy families are Fe-based alloys due to their availability. The elements made of Fe-based alloys can be relatively easily fabricated, reveal relatively good mechanical properties, and their production is economically advantageous. However, these alloys are very severely damaged due to their corrosion both at low and especially at high temperature. Therefore, to increase the durability of construction elements and limit the wastage of metallic components due to their corrosion, it is necessary to implement nonferrous metals and their alloys which usually possess much better corrosion resistance as compared to ferrous materials. Therefore, authors are invited to submit original research articles dealing with all types of corrosion processes of any kind of nonferrous metals and their alloys. Moreover, articles describing the lowering of corrosion rate, corrosion kinetics, mechanisms behind the corrosion processes or methods of improving corrosion resistance by implementing nonferrous coatings are welcome as well. The submitted articles can describe all types of corrosion, including wet corrosion, high temperature oxidation, hot corrosion, etc.

Dr.  Wojciech J. Nowak
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. Materials is an international peer-reviewed open access semimonthly 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

  • Nonferrous metals and alloys
  • Corrosion resistance
  • Corrosion-resistant coatings
  • Corrosion kinetics
  • Mechanisms of corrosion

Published Papers (4 papers)

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Research

14 pages, 8152 KiB  
Article
Oxidation Behavior of Inconel 740H Nickel Superalloy in Steam Atmosphere at 750 °C
by Barbara Kościelniak, Bartosz Chmiela, Maria Sozańska, Radosław Swadźba and Marcin Drajewicz
Materials 2021, 14(16), 4536; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14164536 - 12 Aug 2021
Cited by 4 | Viewed by 1411
Abstract
The oxidation behavior of the nickel superalloy Inconel 740H was studied at 750 °C for 100, 250, 500, 1000, and 2000 h in a steam atmosphere. Microstructure observations were performed using scanning electron microscopes and scanning-transmission electron microscope. The phase identification of existing [...] Read more.
The oxidation behavior of the nickel superalloy Inconel 740H was studied at 750 °C for 100, 250, 500, 1000, and 2000 h in a steam atmosphere. Microstructure observations were performed using scanning electron microscopes and scanning-transmission electron microscope. The phase identification of existing oxidation products was conducted by electron diffraction in transmission electron microscope. The obtained results showed that the microstructure of Inconel 740H was stable during the oxidation process. The kinetic data showed that the superalloy has the ability to form protective oxide layers that are characterized by good adhesion and no tendency to spallation during the test. The oxidation products were mainly composed of external and internal oxides mainly at grain boundaries. The oxides in the external layer were Cr2O3, MnTiO3,, and α-Al2O3 after 2000 h of oxidation. Internal oxides were α-Al2O3 and TiO2. The occurrence of discontinuities in the internal oxidation zone was also observed after 500 h of test. It was found that the thickness of the internal oxidation zone was greater than the thickness of the external oxide layer, which proves the strong tendency of the superalloy to form internal oxides after oxidation in the steam atmosphere. Full article
(This article belongs to the Special Issue Corrosion of Nonferrous Metals and Their Alloys)
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18 pages, 5340 KiB  
Article
Imidazolium-Based Ionic Liquid as Efficient Corrosion Inhibitor for AA 6061 Alloy in HCl Solution
by Xiaohong Wang, Ailing Huang, Dongquan Lin, Mohd Talha, Hao Liu and Yuanhua Lin
Materials 2020, 13(20), 4672; https://0-doi-org.brum.beds.ac.uk/10.3390/ma13204672 - 20 Oct 2020
Cited by 31 | Viewed by 2380
Abstract
The corrosion inhibition performance of an imidazolium-based ionic liquid (IL), 1-butyl-3-methylimidazolium thiocyanate (BMIm), was studied on AA 6061 alloy in 1 M HCl solution at 303 K, 333 K, and 363 K by gravimetric tests, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) analysis. [...] Read more.
The corrosion inhibition performance of an imidazolium-based ionic liquid (IL), 1-butyl-3-methylimidazolium thiocyanate (BMIm), was studied on AA 6061 alloy in 1 M HCl solution at 303 K, 333 K, and 363 K by gravimetric tests, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) analysis. Scanning electron microscopy with energy dispersive X-ray (SEM-EDX) and X-ray photoelectron spectroscopy (XPS) were used to detect the surface morphologies and chemical composition of the surface films. The results indicate that this IL inhibits AA 6061 corrosion in acid with maximum inhibition efficiencies of 98.2%, 86.6%, and 41.2% obtained at 303 K, 333 K, and 363 K respectively. Inhibition efficiency generally decreased with increasing immersion time; the major exception was at 303 K, whereby the inhibition efficiency was detected to increase with immersion time from 30 to 90 min and then decrease slightly beyond 90 min. The results indicate that BMIm is a mixed-type inhibitor with a predominant effect on cathodic reactions. Surface morphology analyses by SEM revealed less surface damage in the presence of the inhibitor. XPS analysis established the development of a protective film on the AA 6061 surface which was hydrophobic in nature. Full article
(This article belongs to the Special Issue Corrosion of Nonferrous Metals and Their Alloys)
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18 pages, 7146 KiB  
Article
Consequences of Different Mechanical Surface Preparation of Ni-Base Alloys during High Temperature Oxidation
by Wojciech J. Nowak, Krzysztof Siemek, Kamil Ochał, Barbara Kościelniak and Bartek Wierzba
Materials 2020, 13(16), 3529; https://0-doi-org.brum.beds.ac.uk/10.3390/ma13163529 - 10 Aug 2020
Cited by 8 | Viewed by 1799
Abstract
The influence of surface roughness on its high temperature oxidation for an Ni-base superalloy was studied using laser profilometry, atomic force microscopy, mass change measurements, glow-discharge optical emission spectrometry, scanning electron microscopy, X-ray diffraction, and positron annihilation methods. The isothermal and cyclic air [...] Read more.
The influence of surface roughness on its high temperature oxidation for an Ni-base superalloy was studied using laser profilometry, atomic force microscopy, mass change measurements, glow-discharge optical emission spectrometry, scanning electron microscopy, X-ray diffraction, and positron annihilation methods. The isothermal and cyclic air oxidation tests were performed at 1000 °C and showed dependence of oxidation behavior on surface roughness. Smoother surfaces oxidation resulted in the formation of a multilayered oxide scale consisting of NiO, Cr2O3, and internally oxidized Al2O3 while a rougher surface formed protective Al2O3 scale. The factors responsible for different oxidation behaviors were determined as higher concentration of vacancies and increased residual stresses in the near-surface region of studied alloys. Full article
(This article belongs to the Special Issue Corrosion of Nonferrous Metals and Their Alloys)
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19 pages, 4033 KiB  
Article
Pentavalent Vanadium Species as Potential Corrosion Inhibitors of Al2Cu Intermetallic Phase in the Sulfuric(VI) Acid Solutions
by Przemysław Kwolek, Barbara Kościelniak and Magdalena Wytrwal-Sarna
Materials 2020, 13(8), 1946; https://0-doi-org.brum.beds.ac.uk/10.3390/ma13081946 - 21 Apr 2020
Cited by 5 | Viewed by 1722
Abstract
The objective of this work was to test vanadium isopolyoxoanions as potential corrosion inhibitors of the intermetallic phase Al2Cu in sulfuric acid solutions at pH = 1.3 and 2.5. The intermetallic was melted in an electric arc furnace. Its phase composition [...] Read more.
The objective of this work was to test vanadium isopolyoxoanions as potential corrosion inhibitors of the intermetallic phase Al2Cu in sulfuric acid solutions at pH = 1.3 and 2.5. The intermetallic was melted in an electric arc furnace. Its phase composition was confirmed using X-ray diffraction, light microscopy, and differential scanning calorimetry. Then Al2Cu corrosion kinetics was studied. Chemical composition of the solution after corrosion was determined using inductively coupled plasma-optical emission spectroscopy. The surface of corroded specimens was analyzed using scanning electron microscopy and X-ray photoelectron spectroscopy. Subsequent electrochemical studies involved determination of open-circuit potential, electrochemical impedance spectra, and polarization curves. It was found that the Al2Cu phase corrodes selectively and vanadium isopolyoxoanions increase this process both at pH = 1.3 and 2.5 with two exceptions. Corrosion inhibition was observed for 100 and 200 mM of Na3VO4 at pH 1.3, with inhibition efficiency 78% and 62% respectively, due to precipitation of V2O5. Full article
(This article belongs to the Special Issue Corrosion of Nonferrous Metals and Their Alloys)
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