Exploring wear, corrosion, and microstructure in PEO coatings via laser surface treatments on aluminum substrates

Jaleh, Babak; Nasri, Atefeh; Chaharmahali, Razieh; Kaseem, Mosab; Fattah-alhosseini, Arash

doi:10.1016/j.optlastec.2024.111958

Optics & Laser Technology

2025

DOI: 10.1016/j.optlastec.2024.111958

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Exploring wear, corrosion, and microstructure in PEO coatings via laser surface treatments on aluminum substrates

Babak Jaleh,

Atefeh Nasri,

Razieh Chaharmahali

et al.

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Wear and Optical Properties of MoSi2 Nanoparticles Incorporated into Black PEO Coating on TC4 Alloy

Zhang,

Zhu,

Xia

et al. 2024

Coatings

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Wear resistance and optical properties are the key point for the application of titanium alloys as structural materials in the aerospace field. To enhance the wear resistance and optical properties of titanium alloys, a black plasma electrolytic oxidation (PEO) coating incorporating MoSi2 nanoparticles was fabricated on the TC4 alloy via the PEO process, with the MoSi2 nanoparticles being in situ doped into the coating. The doping of MoSi2 nano-particles can effectively reduce the pore size of the PEO layer. The nPEO coating exhibited lower surface roughness than that of the PEO layer. The surface hardness of the nPEO coating increased to 42.5 HRC, significantly enhancing the wear resistance of the PEO layer (40.7 HRC). Furthermore, the PEO coatings exhibited better optical property compared to TC alloy, and the incorporation of MoSi2 particles further improved the performance in most wavelength ranges. The infrared emissivity of the nPEO coating was 0.87, a dramatic increase from the 0.38 value of the TC4 alloy. This coating strategy effectively enhances the wear resistance and optical performance of TC4 alloy, which is critical for the surface design of titanium alloys used in aerospace applications.

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Wear and Optical Properties of MoSi2 Nanoparticles Incorporated into Black PEO Coating on TC4 Alloy

Zhang,

Zhu,

Xia

et al. 2024

Coatings

View full text Add to dashboard Cite

show abstract

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Exploring wear, corrosion, and microstructure in PEO coatings via laser surface treatments on aluminum substrates

Cited by 1 publication

References 112 publications

Wear and Optical Properties of MoSi2 Nanoparticles Incorporated into Black PEO Coating on TC4 Alloy

Wear and Optical Properties of MoSi2 Nanoparticles Incorporated into Black PEO Coating on TC4 Alloy

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