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Advances in Corrosion and Protection of Passivating Metals and Alloys

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

Deadline for manuscript submissions: 20 June 2025 | Viewed by 506

Special Issue Editor


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Faculty of Materials Science and Engineering, Warsaw University of Technology, Warszawa, Poland
Interests: corrosion investigation and protection; surface engineering; materials for aviation and space industry
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Special Issue Information

Dear Colleagues,

This Special Issue of Materials entitled "Advances in Corrosion Protection of Passivating Metals and Alloys" concerns the processing and examination of broadly understood corrosion-resistant materials, including stainless steels, titanium, aluminium, magnesium and copper alloys, as well as coatings produced to protect metallic materials and increase their corrosion resistance. Thermal, thermo-chemical or mechanical processes can improve and often, in contrast, deteriorate the corrosion resistance of alloys in aggressive environments. These processes can significantly affect the durability of passive layers that spontaneously form on the metallic surface. Additional protection in the form of inhibitors or anodic protection and surface engineering methods, which are able to provide effective anti-corrosion improvement, are commonly used. Due to the enormous global costs associated with, among other things, the corrosion of passivating materials, this Special Issue will publish articles on the latest achievements and solutions in the field of materials processing, as well as the production of layers and coatings and the use of other protection methods that guarantee the slowing down of corrosion processes, which is crucial when considering the biocompatibility of passivating materials applied for implants.

Dr. Tomasz Borowski
Guest Editor

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Keywords

  • corrosion
  • passivation
  • protection
  • alloys
  • stainless steels
  • surface engineering
  • coating, layer
  • microstructure
  • chemical and phase composition
  • topography
  • biological properties

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Published Papers (1 paper)

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Research

23 pages, 13540 KiB  
Article
Degradation Susceptibility of Al-2.18Mg-1.92Li Alloy in Severe Environmental Conditions
by Franjo Kozina, Zdenka Zovko Brodarac, Mitja Petrič and Barbara Šetina Batič
Materials 2025, 18(9), 1938; https://doi.org/10.3390/ma18091938 - 24 Apr 2025
Viewed by 137
Abstract
Due to the specific application of aluminum–magnesium–lithium (Al-Mg-Li) alloys in the transportation industry, it is necessary to consider the influence of microstructure development on material degradation under severe environmental conditions. This degradation was simulated according to the standard test method ASTM G34-01 (2018) [...] Read more.
Due to the specific application of aluminum–magnesium–lithium (Al-Mg-Li) alloys in the transportation industry, it is necessary to consider the influence of microstructure development on material degradation under severe environmental conditions. This degradation was simulated according to the standard test method ASTM G34-01 (2018) on a newly designed and synthesized Al-2.1Mg-1.92Li alloy in the as-cast condition. The degradation susceptibility of the alloy was estimated by measuring the changes in the sample mass and microhardness, and the pH and chemical composition of the environment with respect to the exposure time. The influence of the microstructure constituents on the degradation of the alloy was determined using metallographic analysis of the exposed surface and cross-section of the samples after testing. During the degradation, dealloying of the αAl matrix through Li, Mg and Al component dissolution resulted in a decrease in the mass of the samples, an increase in the pH of the environment and changes in its chemical composition. This observation was also confirmed by the results of the metallographic analysis. The degradation involved the formation of cavities around the Al8Mg5 (β) and Al2LiMg (T) intermetallic phases through an anodic dissolution mechanism. The increase in microhardness values after exposure indicated an increase in the stress around the degradation front due to the wedge effect of the degradation products. The results of the investigation support the potential application of the synthesized Al-2.1Mg-1.92Li alloy under the severe environmental conditions defined by the ASTM G34-01 (2018) standard. Full article
(This article belongs to the Special Issue Advances in Corrosion and Protection of Passivating Metals and Alloys)
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