Evaluation of Prestrain Annealing Impact on Nanomaterial Sensitization

Table 4

Characterization of the MAO-coated ZK60 Mg alloy and the bare ZK60 Mg alloy [45].

Sample	Roughness average (μm)	Mean pore diameter (μm)	Area percent of pores (% of total)	The thickness of the coating (μm)
Substrate	0.089	—	—	—
Dc
250 V	0.190	0.82	5.54	4.8
Unipolar pulsed
250 V	0.570	2.03	47.8	5.5
300 V	1.439	4.15	36.9	9.8
350 V	2.456	11.2	18.6	19.6
400 V	3.441	13.4	14.2	22.1
Bipolar pulsed
250 V-20 V	0.193	0.48	28.5	5.5
300 V-20 V	1.950	3.73	18.3	13.2
350 V-20 V	2.844	11.5	9.77	23.5
400 V-20 V	3.017	7.42	5.94	24.3