An environmentally friendly laser cleaning method to remove oceanic micro-biofoulings from AH36 steel substrate and corrosion protection

Article Chemistry, Physical

Anti-corrosion performance of the mild steel substrate treated by a novel nanostructure europium oxide-based conversion coating: Electrochemical and surface studies

Amir Hossein Jafari Mofidabadi et al.

Summary: Optimizing the formation parameters for europium oxide film on steel surface can enhance corrosion resistance and decrease corrosion current density.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

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Article Materials Science, Multidisciplinary

Annealed microstructure dependent corrosion behavior of Ti-6Al-3Nb-2Zr-1Mo alloy

Baoxian Su et al.

Summary: Annealing at higher temperatures increases the corrosion resistance of Ti80 alloy by forming a higher volume fraction of beta phase, which is more resistant to corrosion than alpha phase due to higher content of Nb, Mo, and Zr. However, severe corrosion is observed in 5 M HCl solution due to the breakdown of oxide films and micro-galvanic couple effects. These findings provide insights for designing Ti alloys with high corrosion resistance through microstructural optimization.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2021)

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Article Chemistry, Applied

A polyvinylpyrrolidone-based surface-active copolymer for an effective marine antifouling coating

Hongshuang Guo et al.

Summary: A novel surface-active copolymer based on PVP and PDMS was designed and incorporated into a PDMS matrix to form a surface-renewable antifouling coating. The copolymer exhibited outstanding antifouling and fouling-release properties, with higher PVP content leading to better performance. The long-term antifouling capability of the coating was demonstrated in marine field tests, offering a promising solution to marine biofouling issues.

PROGRESS IN ORGANIC COATINGS (2021)

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Article Materials Science, Multidisciplinary

Long-Term Atmospheric Aging and Corrosion of Epoxy Primer-Coated Aluminum Alloy in Coastal Environments

Tianyu Zhang et al.

Summary: Long-term atmospheric exposure tests on epoxy primer-coated aluminum alloy in a coastal environment showed that different durations of exposure resulted in a normal distribution of contact angles, with Al(OH)(3) as the corrosion product after 20 years, indicating intergranular and exfoliation corrosion. The impedances of the coatings decreased significantly after long-term exposure, with the substrate showing signs of corrosion after 20 years. The study also analyzed the corrosion mechanism and electrochemical equivalent circuit.

COATINGS (2021)

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Article Optics

Removal mechanism of surface cleaning on TA15 titanium alloy using nanosecond pulsed laser

Zhichao Li et al.

Summary: Nanosecond laser cleaning offers an efficient and environmentally friendly method for removing oxide films from titanium alloys. The optimal cleaning parameters were found to be a laser fluence of 3.98 J/cm(2) and a laser head moving speed of 5 mm/s, resulting in improved surface properties. The main mechanism of laser cleaning was identified as laser ablation, with the formation of titanium alloy oxides observed at higher laser energy fluences.

OPTICS AND LASER TECHNOLOGY (2021)

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Article Chemistry, Physical