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Tribocorrosion behaviour of DLC-coated 316L stainless steel

Marwan Azzi, J. A. Szpunar, Jolanta-Ewa Sapieha and Ludvik Martinu

Article (2009)

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The tribological properties of CrSiN coatings were investigated under dry and wet conditions. CrSiN films (2 μm thick) were deposited on 301 stainless steel substrates by dual magnetron sputtering, using a chromium interface layer (500 nm thick) on the top of plasma nitrided surface. The morphology and microstructure of the CrSiN films were examined by SEM, EDS and X-ray diffractometry. Dry and wet wear tests were performed using a linear reciprocating ball-on-flat tribometer. In wet condition, the contact was immersed in NaCl 1 wt.%, and the sliding wear tests were performed at open circuit potential (OCP), and under cathodic and anodic conditions.

CrSiN films were found to exhibit excellent wear resistance under dry condition: the films had no tendency to delaminate after 1800 cycles of sliding wear under 1.6 GPa Hertzian stress. However, under wet condition, the wear resistance was rather poor: the films detached from the substrate at smaller contact pressures (1.2 GPa). It was demonstrated that the corrosion reactions at the electrode/electrolyte interface were the reason for the degradation of the tribological properties of these films; in the absence of corrosion reactions (under cathodic polarization), CrSiN coatings were found to resist much better sliding wear.

Uncontrolled Keywords

CrN; CrSiN; Tribocorrosion; 301; wear; corrosion

Department: Department of Engineering Physics
Grant number: CRDPJ328038-05
PolyPublie URL: https://publications.polymtl.ca/20007/
Journal Title: Wear (vol. 267, no. 5-8)
Publisher: Elsevier
DOI: 10.1016/j.wear.2009.02.006
Official URL: https://doi.org/10.1016/j.wear.2009.02.006
Date Deposited: 18 Apr 2023 15:14
Last Modified: 05 Apr 2024 11:02
Cite in APA 7: Azzi, M., Szpunar, J. A., Sapieha, J.-E., & Martinu, L. (2009). Tribocorrosion behaviour of DLC-coated 316L stainless steel. Wear, 267(5-8), 860-866. https://doi.org/10.1016/j.wear.2009.02.006



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