Ti3C2T solid lubricant coatings in rolling bearings with remarkable performance beyond state-of-the-art materials

• Multi-layer MXenes were used as solid lubricants coatings for rolling bearings. Comparison with molybdenum disulfide (MoS 2 ) and diamond-like carbon (DLC) coatings. Bearing washer wear was substantially reduced by MXene Transfer film formation verified on secondary contacts (rolling elements/cage pockets). Service life extension 30 55% compared to MoS DLC, respectively. Two-dimensional (2D) transition metal carbides, nitrides, carbonitrides, known MXenes, are a growing class of 2D materials, which offer great lubrication ability low friction applications due their weakly bonded multi-layer structure tribo-layer self-lubricating characteristics. To date, most studies have assessed tribological response in basic laboratory tests. However, these tests do not adequately reflect the complex geometries, kinematics, stresses present machine components. Here, we aim at bridging this gap through assessment performance Ti 3 C T x lubricant MXenes’ is state-of-the art coatings, include ), tungsten-doped hydrogenated amorphous (a-C:H:W), hydrogen-free, more graphite-like (a–C). reduce bearing washers up 94%, can be attributed transfer lubricious nano-sheets tribo-contacts bearing. While frictional torque all similar during steady-operation, MXene-coated bearings extend service 30% This contribution demonstrates outperform state-of-the-art dry-running components such