Investigation of the Scanning Microarc Oxidation Process

Figure 15

Surface morphology of the A356 alloy after 15 min: (a) and (d) are, respectively, SMAO (interelectrode gap 5 mm, zero velocity) and MAO; (b) and (c) are the high magnification of the dotted rectangle area; (e) and (f) are the high magnification of the dotted rectangle area.

(a)

(b)

(c)

(d)

(e)

(f)