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Coatings 2014, 4(3), 508-526; doi:10.3390/coatings4030508

Electrochemical Characterization of Multilayer Cr/CrN-Based Coatings

1
Università degli Studi di Milano, Dipartimento di Chimica, Via C. Golgi 19, 20133 Milano, Italy
2
Trattamenti Termici Nervianesi (C.R.T. Division) SpA Nerviano, Via Primo Maggio 30, 20014 Nerviano (MI), Italy
*
Author to whom correspondence should be addressed.
Received: 20 June 2014 / Revised: 21 July 2014 / Accepted: 22 July 2014 / Published: 31 July 2014

Abstract

In this work, a series of mono-and multilayer coatings were considered. They consisted of CrN and Cr prepared by physical vapor deposition with a cathodic arc. The most common steels for molds of plastics were chosen as substrates: X37CrMoV5-1 (SMV3), X2NiCoMo18-8-5 (MARVAL M1), X105CrCoMo18-2 (N690) and X40CrMo15 (X13T6). The samples were made with surface state conditions reproducing the main finishes required for molding of plastics: mirror, electro-eroded, sandblasted and ground finish. The coatings were characterized morphologically and chemically. The corrosion behavior of bare and coated steels was evaluated by electrochemical methods. View Full-Text
Keywords: multilayer coating; CrN-based coating; Cr-based coating; physical vapor deposition; cathodic arc; steel substrate; corrosion; potentiodynamic polarization multilayer coating; CrN-based coating; Cr-based coating; physical vapor deposition; cathodic arc; steel substrate; corrosion; potentiodynamic polarization
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Caiazzo, F.C.; Sisti, V.; Trasatti, S.P.; Trasatti, S. Electrochemical Characterization of Multilayer Cr/CrN-Based Coatings. Coatings 2014, 4, 508-526.

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