Table 1.

Roughness parameters of the nanostructured Ti alloy samples.

	Ti6Al4V			Ti13Nb13Zr
Roughness parameters	Ra	Rq	Rt	Ra	Rq	Rt
Average of 15 different measurements	0.0587	0.0826	0.4347	0.2754	0.3341	1.6534
Standard error	0.0032	0.0045	0.0210	0.0379	0.0399	0.1543