Plasma Nitriding of Surface Mo-Enriched Sintered Iron

Figure 5

Optical cross-sectional micrographs of iron samples enriched with Mo and nitrided: (a) E5TA nitrided under 5 vol.% of N₂ and 540°C; (b) E5TB nitrided under 5 vol.% of N₂ and 450°C; (c) E75TA nitrided under 75 vol.% of N₂ and 540°C; (d) E75TB nitrided at 75 vol.% of N₂ and 450°C.

(a)

(b)

(c)

(d)