RT Journal Article T1 Tribological performance of ionic liquids as additives of water-based cutting fluids A1 Del Sol, I. A1 Gámez, A. J. A1 Rivero, A. A1 Iglesias, P. AB Dry machining of aluminum parts has been the most eco-friendly method in an attempt to reduce the use of mineral-based lubricants and other working fluids. The drawbacks of dry machining include an increase of contact temperatures and stresses leading to high values of tool wear and a decrease of the tool life. For this reason, more sustainable lubricants are needed as a middle point between waste generation and tool life. Since 2001, Ionic Liquids (ILs) have attracted interest as high-performance lubricants and lubricant additives. In this work, the lubricating ability of one halogen-containing and two halogen-free ILs used as additives in water has been investigated and compared to a halogen-containing cutting fluid (CF). Tests were performed using a pin-on-disk tribometer for aluminum-tungsten carbide pair. The worn surfaces of the disks and balls were analyzed by optical and scanning electron microscopies, non-contact 3D profilometry and energy dispersive X-ray spectroscopy. It was found that the addition of 1 wt% of one of the halogen-free ILs reduces friction and wear of both aluminum disks and ceramic balls with respect to dry or water-lubricated conditions. In addition, no wear was detected on the ball surface, therefore increasing the tool life compared to the CF. SN 0043-1648 YR 2019 FD 2019-04-30 LK https://hdl.handle.net/11556/3941 UL https://hdl.handle.net/11556/3941 LA eng NO Del Sol , I , Gámez , A J , Rivero , A & Iglesias , P 2019 , ' Tribological performance of ionic liquids as additives of water-based cutting fluids ' , Wear , vol. 426-427 , pp. 845-852 . https://doi.org/10.1016/j.wear.2019.01.109 NO Publisher Copyright: © 2019 Elsevier B.V. NO This work has received financial support from Spanish Government (Project DPI2015-71448-R) and the University of Cadiz (University training plan UCA/REC01VI/2016 and Ph.D. Research stay plan UCA/R20REC/2017 ). The authors also acknowledge the support from the Mechanical Engineering Department at the Rochester Institute of Technology. DS TECNALIA Publications RD 28 jul 2024