Progress in experimental study of aqueous lubrication

Aqueous lubrication is commonly regarded as friendly to the environment. We review current knowledge of the behaviors and mechanisms of aqueous lubrication. Major methods for investigating aqueous lubrication are addressed. We describe studies on both friction and film formation performance of various water-based lubricants. Additionally, we discuss possible underlying mechanisms of aqueous lubrication. Attention is also drawn to continuing topics of investigation and some unsolved problems.

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