Figure 7

FE-SEM micrographs of MS surface immersed for 24Â h in the corrosive electrolyte (a, b) without and (c, d) with 800Â ppm Marjoram extract.

FE-SEM micrographs of MS surface immersed for 24Â h in the corrosive electrolyte (a, b) without and (c, d) with 800Â ppm Marjoram extract.