Abstract

A few super wear-resistant materials can maintain stable performance in moist environment where WB4-B material as a new superhard material shows a potential for wear resistance. We investigated the wear compatibility of super-hard WB4-B material coupling with steel, Si3N4, Al2O3, and SiC materials, suggesting that WB4-B material against with SiC ceramic exhibits the super wear-resistant and self-lubricating properties with a wear rate to 2.31 x 10- 8 mm3N- 1m- 1 and a friction coefficient to 0.1. The ultra-low wear mechanism is that the combined lubrication film of H3BO3/WO3 center dot H2O/SiO2 center dot H2O synergizes with the superhard properties of WB4-B. These findings provide a reference to the design and development of super wear-resistant materials.

Keywords Plus：ULTRA-LOW FRICTION，THIN-FILMS，TUNGSTEN TETRABORIDE，RELATIVE-HUMIDITY，CARBON，DIAMOND，BORON，PERFORMANCE，DEPOSITION，BEHAVIORS

Published in TRIBOLOGY INTERNATIONAL，Volume204；10.1016/j.triboint.2024.110485，APR 2025