Electrochemical Reduction of Industrial Baths Used for Electropolishing of Stainless Steel

Table 2

Sample surface roughness in the area of noticed undulations.

Type of bath	I (A·cm^−2)	q/s (Amin·cm^−2)	Sq (nm)	FFT_ampl	ΔZ (µm)	Surface defects after EP
Without ER	0.20	9	547	547	15.50	+++
With ER	0.20	9	645	645	9.68	+++
Without ER	0.19	9	289	289	6.35	++
Without ER	0.18	9	170	170	2.32	+
Without ER	0.17	9	201	201	4.15	None
Without ER	0.05	9	271	271	2.31	None
With ER	0.05	9	218	218	4.33	None