The corrosion problem of Mg alloy limits its application in many engineering fields. Plasma electrolytic oxidation (PEO) is an economical and eco-friendly technology that can create a dense oxide layer on Mg alloy, offering a solution to the corrosion issue. This research summarizes the use of PEO technology in developing corrosion-resistant coatings for Mg alloys and examines the growth mode and corrosion process of PEO coatings. It is concluded that current efforts to enhance the corrosion resistance of PEO coatings on Mg alloys can be categorized into two approaches: improving the internal structure of the coating and enhancing the phase composition. This includes optimizing coating thickness, roughness, and density; repairing micropores and cracks; and introducing corrosion-resistant compounds by doping. Micropores and cracks are identified as vulnerable points for corrosion, and sealing is an effective strategy to address this. By modifying the phase composition of the coating, corrosion occurrence can be minimized, significantly boosting the corrosion resistance of Mg alloys. Finally, future challenges and potential advancements in corrosion-resistant PEO coatings for Mg alloys are discussed.

The corrosion problem affecting ancient Chinese bronze relics and the protective measures required post-excavation are crucial for the study of historical cultural heritage and for ensuring heritage revitalization and sustainable development. This work includes a statistical analysis, clusters information, and thoroughly examines international research on bronze relic corrosion and protection. It delves into the timeline and trends of research, the main countries leading the research efforts, the research content, and the relationships between these factors. A comprehensive review is provided on the corrosion principles, materials, detection methods, and protection techniques for bronze. The study explores the corrosion principles and processes of bronze from a materials science perspective both before and after excavation. It summarizes non-destructive detection methods and examines specific factors that influence corrosion. Furthermore, the article reviews current corrosion protection methods for bronze and related protection materials, including commonly used strategies such as surface corrosion inhibitors and organic resin coatings for protection. It also discusses the potential application of advanced corrosion protection methods in the realm of metal materials in recent years to safeguard bronze. Proposing innovative solutions, the study suggests the possibility of constructing biomimetic superhydrophobic surfaces to create a barrier isolating humid air from contacting bronze materials, thereby reducing the adhesion of corrosive media to the substrate and significantly diminishing the likelihood of corrosion. In conclusion, the article looks towards the future, considering the challenges and potential development directions for the corrosion protection of bronze and related protection materials.

Wooden cultural relics, as significant components of historical and cultural heritage, are persistently threatened by deterioration due to biological, environmental, and chemical factors. Addressing these issues is crucial not only for the conservation of cultural heritage but also for ensuring its sustainable transmission to future generations. This review systematically examines international research on the degradation and preservation of wooden cultural relics, outlining the temporal evolution, key contributing nations and research groups, major thematic focuses, and their interrelationships. We comprehensively summarize the mechanisms underlying wood degradation—including microbial attack, chemical degradation, and stress-induced deformation—and evaluate advanced techniques for detecting and assessing deterioration. Furthermore, we analyze the critical environmental and material variables that influence degradation rates. Building on this foundation, the paper surveys current mainstream conservation methodologies, such as physical and chemical reinforcement, desiccation, and drying treatments. Special emphasis is placed on emerging strategies that leverage novel materials and technologies, for instance, biomimetic hydrophobic coatings to prevent liquid water penetration and nanomaterial-based approaches for multifunctional surface treatment. Finally, we discuss persistent challenges and prospective research directions in the field, aiming to inform future scientific studies and advance practical conservation efforts for wooden cultural heritage.