Investigates the impact of Mo content on tribological performance in CoCrFeNiMox composites, suggesting their potential for extreme applications.
Key Points
The research aims to understand how varying molybdenum (Mo) content affects the microstructure and tribological properties of specific high-performance composites.
Composites were fabricated using spark plasma sintering.
Different Mo content levels (0.2, 0.5, 1 wt.%) were tested for comparative analysis.
Microstructural and tribological analyses were conducted across temperatures from 25 to 800 °C.
Increased Mo content improved hardness (up to 546 HV) and yield strength (up to 502 MPa).
The lowest measured friction coefficient was 0.23 with wear rates under 10−6 mm3/N·m.
Tribochemical reactions at high temperatures resulted in stable lubrication via oxide and molybdate films.