Journal
COATINGS
Volume 8, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/coatings8070229
Keywords
multilayered AlCrN coating; Raman spectroscopy; tribo-corrosion; sliding wear
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Funding
- Estonian Research Council [PUT1063]
- Estonian Ministry of Higher Education and Research [IUT19-29, IUT19-28]
- European Union through the European Regional Development Fund [TK141]
- TTU base finance projects [B54, B56, SS427]
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In this study, a multilayered AlCrN coating has been employed as a protective layer for steel used in tribo-corrosive conditions. The coating was deposited by a lateral rotating cathode arc PVD technology on a AISI 316L stainless steel substrate. A ratio of Al/(Al + Cr) was varied from 0.5 up to 0.6 in the AlCrN layer located above Cr adhesion and gradient CrN interlayers. A Raman spectroscopy and potentiodynamic polarization scan were used to determine the resistance in tribo-corrosive (3.5 wt% NaCl) conditions. Correlation between sliding contact surface chemistry and measured tribological properties of material was supported with static corrosion experiments. The corrosion mechanisms responsible for surface degradation are reported.
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