Passive film analysis and corrosion study of steel type 301 after mechanical deformation

TY - JOUR

T1 - Passive film analysis and corrosion study of steel type 301 after mechanical deformation

AU - Olugbade, T. O.

N1 - © The Author(s), under exclusive licence to The Materials Research Society 2022

PY - 2022

Y1 - 2022

N2 - The electrochemical properties of the passive film formed on surface-modified 301 stainless steel (SS) were examined in the present study. After surface treatment, the passive film analysis was carried out via X-ray photoelectron spectroscopy (XPS) technique, while the surface microstructure of the samples was examined by scanning electron microscope analysis. With Cr 2p, Fe 2p, O 1s, Ni 2p, and C 1s as the principal spectra in the passive film, the Cr 2p spectrum shows two major peaks at 574.3 eV and 583.8 eV corresponding to Cr 2p3/2 (Cr in the metallic state) and Cr 2p1/2, respectively. The Fe 2p spectrum has two major peaks of 707.1 and 720.1 eV corresponding to Fe 2p3/2 (Fe in metallic state) and Fe 2p1/2 peaks, respectively, while the binding energies of 853.3 and 875.1 eV for the Ni 2p spectrum correspond to nickel in the metallic state. The XPS spectra revealed a higher percentage of Cr in the passive film of the treated 301 SS when compared with other elements. From the polarization results, the treated 301 SS possessed a lower corrosion current density of 1.401 mA/cm2 and higher corrosion potential of − 0.085 V.

AB - The electrochemical properties of the passive film formed on surface-modified 301 stainless steel (SS) were examined in the present study. After surface treatment, the passive film analysis was carried out via X-ray photoelectron spectroscopy (XPS) technique, while the surface microstructure of the samples was examined by scanning electron microscope analysis. With Cr 2p, Fe 2p, O 1s, Ni 2p, and C 1s as the principal spectra in the passive film, the Cr 2p spectrum shows two major peaks at 574.3 eV and 583.8 eV corresponding to Cr 2p3/2 (Cr in the metallic state) and Cr 2p1/2, respectively. The Fe 2p spectrum has two major peaks of 707.1 and 720.1 eV corresponding to Fe 2p3/2 (Fe in metallic state) and Fe 2p1/2 peaks, respectively, while the binding energies of 853.3 and 875.1 eV for the Ni 2p spectrum correspond to nickel in the metallic state. The XPS spectra revealed a higher percentage of Cr in the passive film of the treated 301 SS when compared with other elements. From the polarization results, the treated 301 SS possessed a lower corrosion current density of 1.401 mA/cm2 and higher corrosion potential of − 0.085 V.

U2 - 10.1557/s43580-022-00327-x

DO - 10.1557/s43580-022-00327-x

M3 - Article

SN - 2059-8521

VL - 7

SP - 886

EP - 891

JO - MRS Advances

JF - MRS Advances

IS - 31

ER -