Breakdown and Evolution of the Protective Oxide Scales of AISI 304 and AISI 316 Stainless Steels under High-Temperature Oxidation

Figure 6

SEM micrograph of the surface of AISI 316 oxidized at 1000°C for 100 hours; (a) SEM image of the whole surface at magnification 20x, (b) SEM image at magnification 400x, (c) SEM image at magnification 2000x, and (d) SEM image at magnification 5000x the damaged chromia layer.