Protective Sliding Carbon-Based Nanolayers Prepared by Argon or Nitrogen Ion-Beam Assisted Deposition on Ti6Al4V Alloy

Table 2

Maximum nanohardness values of the modified samples and the reference sample.

Sample	C:Ar	C:N	Ref. sample
Maximum indentation hardness (GPa)	12.34 ± 0.64	11.84 ± 0.34	5.33 ± 0.41
Contact depth (nm)	11	14	6