Fig. 7: Identification of sulfur and oxygen species in corrosion product layers of CrCoNi and CrMnFeCoNi using XPS. | npj Materials Degradation

Fig. 7: Identification of sulfur and oxygen species in corrosion product layers of CrCoNi and CrMnFeCoNi using XPS.

From: Long-term corrosion studies of CrCoNi and CrMnFeCoNi in sulfuric acid

Fig. 7

a High-resolution O 1 s and S 2p XP spectra of the CrCoNi and b CrMnFeCoNi alloys: as-prepared (top row) and after 7 d of immersion in 1 M H2SO4 solution (middle row) and 28 d of immersion (bottom row). The same sample was studied after reimmersion in the corrosion medium. The assignment of the deconvoluted XP lines is given at the top of the figure. Red arrows indicate the direction of peak shifts.

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