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Open AccessArticle

Raman Spectroscopy for Reliability Assessment of Multilayered AlCrN Coating in Tribo-Corrosive Conditions

1
Department of Mechanical and Industrial Engineering, Tallinn University of Technology, 12616 Tallinn, Estonia
2
Department of Materials and Environmental Technology, Tallinn University of Technology, 12616 Tallinn, Estonia
3
European Space Agency ESA-ESTEC, Materials and Processes Section, 2201 Noordwijk, The Netherlands
*
Author to whom correspondence should be addressed.
Coatings 2018, 8(7), 229; https://doi.org/10.3390/coatings8070229
Received: 18 May 2018 / Revised: 11 June 2018 / Accepted: 20 June 2018 / Published: 26 June 2018
(This article belongs to the Special Issue Coatings Tribology)
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Abstract

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. View Full-Text
Keywords: multilayered AlCrN coating; Raman spectroscopy; tribo-corrosion; sliding wear multilayered AlCrN coating; Raman spectroscopy; tribo-corrosion; sliding wear
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Baronins, J.; Antonov, M.; Bereznev, S.; Raadik, T.; Hussainova, I. Raman Spectroscopy for Reliability Assessment of Multilayered AlCrN Coating in Tribo-Corrosive Conditions. Coatings 2018, 8, 229.

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