Recent Advances in Green Tribology

Dear Colleagues,

Tribology is intrinsically linked to the environment, since its main purpose is to reduce the friction and wear of mechanical systems. This does not only involve an obvious economic benefit (already widely studied by several authors) but also a tangible benefit from an environmental point of view (the improvement of energy efficiency and reduction of associated emissions of the greenhouse effect, the improvement of the durability of materials and consequent decrease in the demand for raw materials, etc.). However, today, to design materials or lubricants capable of working efficiently in the most demanding and varied scenarios is not enough. At present, the design and manufacture of tribological applications must also be environmentally acceptable; that is, it must minimize the impact on the environment caused during its manufacture, use, disposal or recovery.

Likewise, recent advances in the study of efficient and environmentally friendly tribological applications that accelerate the energy transition towards renewable energies (wind turbines, tidal turbines, etc.) are of interest.

Innovation under an environmental sustainability approach, in the tribological areas of the development of new materials and surfaces, the design of more efficient tribological pairs, and the design of new lubricants and additives, etc. will be a source of competitive advantage, fundamental for the industry, in the coming years. The aim of this Special Issue is to present the recent advances in green tribology through a combination of original research papers and review articles from the outstanding researchers in this field.

In particular, the topics of interest include but are not limited to:

• Biodegradable and environmentally friendly lubricants;
• Tribology of renewable sources of energy;
• Coatings, surface texturing, and minimization of heat and energy dissipation;
• Biomimetic surfaces;
• Real-time lubricant condition monitoring.

Dr. Rubén González
Dr. José L. Viesca
Guest Editors

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