Corrosion Behavior of Lightweight Metals

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

Deadline for manuscript submissions: 15 April 2026 | Viewed by 388

Special Issue Editor


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Guest Editor
School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Interests: corrosion; electrochemical corrosion; corrosion mechanism; corrosion behaviors; stress corrosion; microstructure; magnesium; high-entropy alloy; additive manufacturing

Special Issue Information

Dear Colleagues,

Lightweight metals—such as aluminum, magnesium, and titanium alloys—are indispensable in modern industries due to their high strength-to-weight ratios and sustainability potential. However, their corrosion susceptibility in aggressive environments (e.g., marine, high-temperature, or biocorrosive conditions) remains a critical challenge, directly impacting structural integrity, service life, and economic viability. Understanding and mitigating corrosion in these materials are essential for advancing aerospace, automotive, energy, and biomedical technologies.

This Special Issue seeks to highlight innovative research and reviews on the corrosion behavior of lightweight metals. We invite contributions that address the unique corrosion challenges of light alloys and explore strategies to enhance their performance in demanding environments. We welcome original research articles, comprehensive reviews, and communications. Topics of interest include, but are not limited to, the following:

  • Electrochemical kinetics and thermodynamics of corrosion in aluminum, magnesium, and titanium alloys;
  • Passivation and breakdown mechanisms in oxide layers of lightweight metals;
  • Localized corrosion (pitting, crevice, intergranular, stress corrosion cracking) in lightweight alloys;
  • Microbiologically influenced corrosion (MIC) in lightweight metals under industrial or marine conditions;
  • High-temperature oxidation and hot corrosion in titanium and magnesium-based alloys;
  • Role of alloying elements, second-phase particles, and microstructure on corrosion resistance;
  • Influence of processing techniques (e.g., casting, additive manufacturing, heat treatment) on corrosion performance;
  • Corrosion in specific environments: marine, geothermal, acidic, or high-salinity conditions;
  • Accelerated corrosion testing methods for lightweight metals and their correlation with real-world performance;
  • Long-term corrosion prediction models and service-life estimation;
  • In situ/operando characterization of corrosion processes;
  • Advanced microstructural analysis of corrosion products and interfaces in lightweight metals;
  • Surface engineering (coatings, anodizing, PVD/CVD, laser treatment) for lightweight metal protection;
  • Sacrificial and non-sacrificial corrosion inhibitors tailored for lightweight alloys;
  • Design of corrosion-resistant lightweight composites and hybrid materials;
  • Application of machine learning/artificial intelligence in corrosion prediction, monitoring, and material design.

Dr. Chuanqiang Li
Guest Editor

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Keywords

  • lightweight metals
  • corrosion mechanisms
  • electrochemical kinetics
  • localized corrosion
  • stress corrosion
  • high-temperature oxidation
  • microbiologically influenced corrosion
  • corrosion mitigation

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Published Papers (1 paper)

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Research

19 pages, 3294 KB  
Article
Correlation Between the Accelerated-Rate Decay Mechanism in Neutral Salt Spray Tests and the Atmospheric Corrosion Kinetics Model of a 7075 Aluminum Alloy in Marine Environments
by Changjing Cui, Xianlian Mu, Zuodong Sun and Kui Xiao
Metals 2026, 16(1), 45; https://doi.org/10.3390/met16010045 - 29 Dec 2025
Viewed by 191
Abstract
This study established a marine atmospheric corrosion prediction model by comparing the corrosion behavior of 7075 aluminum alloy in neutral salt spray tests and outdoor exposure tests conducted in the coastal atmosphere of Hainan. The results show that severe rusting occurred after 96 [...] Read more.
This study established a marine atmospheric corrosion prediction model by comparing the corrosion behavior of 7075 aluminum alloy in neutral salt spray tests and outdoor exposure tests conducted in the coastal atmosphere of Hainan. The results show that severe rusting occurred after 96 h of neutral salt spray testing, with loose white cluster-like corrosion products mainly composed of Al(OH)3 and Al2O3. The thickening of the corrosion product layer slowed down the corrosion process, following a nonlinear power-law kinetic relationship. In the later stage, potential dropped sharply due to product layer spallation, and recovered as new corrosion products formed, confirming that the stability of the product layer is critical for protection. Under coastal atmospheric exposure, the composition of corrosion products was similar to that observed in the salt spray test, but the actual corrosion rate was affected by environmental dynamic equilibrium. The acceleration factor of the neutral salt spray test corresponding to the same corrosion amount in the Hainan marine atmosphere exhibited a declining trend, reflecting that differences in the protective nature of the corrosion product layer were influenced by environmental factors. Electrochemical analysis indicated that both tests showed similar current–potential synergistic variation mechanisms dominated by product layer stability. In summary, while the neutral salt spray test effectively simulates the chloride-induced corrosion mechanism in marine atmospheres, its kinetic model cannot directly predict real corrosion behavior through a simple acceleration factor, as environmental complexity must be considered. Full article
(This article belongs to the Special Issue Corrosion Behavior of Lightweight Metals)
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