▎ 摘　　要

Ionic liquid bis(salicylato)borate (BScB) functionalized graphene oxide (GO) was prepared by gamma-irradiation for tribological application. Dose dependent friction behavior of ionic liquid functionalized GO and dynamic changes of chemical phases of tribofilm was investigated by depth resolved X-ray photoelectron spectroscopy. Few layers of graphene oxide tribofilm was observed and it was found to be stable in the sliding interfaces. This was the main reason for the improvement of friction behavior of metallic sliding interfaces. (C) 2019 Elsevier B.V. All rights reserved.