September 10, 2025LubricantsOpen Access

Biodegradable Polyalphaolefins for Gear Lubrication in Electrical Drives: Aging and Wetting

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Observational analysis reveals aging impacts on wetting in biodegradable lubricants for carbon steels.

The study shows that aging impacts the wetting of biodegradable polyalphaolefins on steel surfaces.
Contact angle measurements indicated limited wetting in aged oils and high surface roughness conditions.
Investigation focused on carbon steels with varying microstructures, revealing critical conditions for lubrication.
Results suggest that while biodegradable oils can work, specific steel and aging scenarios may lead to issues.

Holderied et al. (2025) studied this question.

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