Published

2010-09-01

A comparative study of corrosion resistance in CrN and CrN/Cr coatings, electrodeposited chromium and epoxy paints

Estudio comparativo de la evaluación a la corrosión de recubrimientos de CrN y CrN/Cr con recubrimientos de cromo electrodepositado y pinturas tipo epoxy

DOI:

https://doi.org/10.15446/ing.investig.v30n3.18174

Keywords:

CrN, hard chromium, multilayer, corrosion, UBM (en)
CrN, cromo duro, multicapas, corrosión, UBM (es)

Downloads

Authors

  • Magda Torres .
  • Yuri Chipatecua .
  • Diana Maritza Marulanda Cardona Universidad Nacional de Colombia
  • Jhon Jairo Olaya Florez .

This work was aimed at comparing the corrosion resistance of CrN and CrN/Cr coatings deposited through unbalanced magnetron sputtering (UBM), Cr industrial coatings and epoxy paints. UBM coatings were optimised and produced at room temperature, using 400 mA discharge current. Ar and N2 flow rates were set at 9 standard cubic centimetres per minute (SCCM) and 3 SCCM, respectively. Deposition times were set to produce CrN monolayers and nanometric multilayers having 1μm total thickness and 100 nm period. Coating microstructure was determined through scanning electron microscopy as texture and crystalline phases were determined using x-ray diffraction and infrared spectroscopy. Corrosion resistance was studied with anodic polarisation tests using 0.5M H2SO4 and 0.05M KSCN solution. Nanometric multilayers improved stainless steel corrosion resistance and it was observed that coated CrN steel A36 could be an alternative for replacing stainless steel in acid environments. Corrosion mechanisms for the coatings so deposited are discussed.

En este trabajo se compara la resistencia a la corrosión de recubrimientos de CrN y CrN/Cr depositados con el sistema de sputtering con magnetrón desbalanceado (UBM) con recubrimientos industriales de Cr y pinturas tipo epoxy. Los recubrimientos UBM fueron optimizados y producidos a temperatura ambiente y con una corriente de descarga de 400 mA. Se utilizó un flujo de Ar de 9 sccm y para la producción de CrN se activó el nitrógeno con un flujo de 3 sccm. Los tiempos de depósito se ajustaron para producir monocapas de CrN y multicapas a escala nanométrica manteniendo un espesor total de 1μm y un periodo de 100nm. A los recubrimientos obtenidos se les determinó su microestructura con microscopia electrónica de barrido (SEM), la textura y fases cristalinas con difracción de rayos X (XRD) y espectroscopia infrarroja (IR), y la resistencia a la corrosión se evaluó con ensayos de polarización potenciodinámica utilizando una solución de 0,5M H2SO4 y 0,05M KSCN. En general, las multicapas nanométricas mejoraron la resistencia a la corrosión de los aceros inoxidables, además se observó que los aceros A36 recubiertos con CrN pueden ser una alternativa para reemplazar a los aceros inoxidables en ambientes ácidos. Los mecanismos de corrosión para los recubrimientos producidos son discutidos en esta investigación.

Downloads

Download data is not yet available.

References

Ahn, S. H., Choi, Y. S. Kim, J. G., Han, J. G., A study on corrosion resistance characteristics of PVD Cr-N coated steels by electrochemical method., Surface and Coatings Technology, Vol. 150, No. 2-3, 2002, pp. 319-326.

Alfonso, J. E., Torres, J., Cárdenas, E.M., Torres, M.M., Olaya, J.J., Marco, J.F., Crecimiento y caracterización de películas de Cr mediante pulverización catódica magnetrón RF., Revista Latinoamericana de Metalurgia y Materiales, Vol. S1, No. 3, 2009, pp. 969-972.

ASTM G5-87, Standard Reference Test Method for Making Potentiostatic and Potentiodynamic Anodic Polarization Measurements, 1999: Philadelphia.

Barshilia, H. C., Selvakumar, N. Deepthi, B. Rajam, K. S., A comparative study of reactive direct current magnetron sputtered CrAlN and CrN coatings., Surface and Coatings Technology, Vol. 201, No. 6, 2006, pp. 2193-2201.

Bertrand, G., Mahdjoub, H., Meunier, C., A study of the corrosion behaviour and protective quality of sputtered chromium nitride coatings., Surface and Coatings Technology, Vol. 126 No. 2-3, 2000, pp.199-209.

Chou, W.-J., Yu, G.-P., Huang, J.-H., Corrosion resistance of ZrN films on AISI 304 stainless steel substrate., Surface and Coatings Technology, Vol. 167, No. 1, 2003, pp. 59-67.

Flores, M., Multicapas de TiN/Ti depositadas por espurreo asistido con campos magnéticos variables., en Instituto de Investigación en Materiales, 2004, Universidad Nacional Autónoma de México: México, D.F. pp. 192.

Fontalvo, G. A., Daniel R., Mitterer, C., Interlayer thickness influence on the tribological response of bi-layer coatings., Tribology International, Vol. 43, 2010, pp.108-112.

Inoue, S., Okada, F., Koterazawa, K., CrN films deposited by rf reactive sputtering using a plasma emission monitoring control., Vacuum, Vol. 66, 2002, pp. 227-231.

Kaciulis, S., Mezzi, A., Montesperelli, G., Lamastra, F., Rapone, M., Casadei, F., Valente, T., Gusmano, G., Multi-technique study of corrosion resistant CrN/Cr/CrN and CrN: C coatings., Surface and Coatings Technology, Vol. 201 No. 1-2, 2006, pp. 313-319.

Kot, M., Rakowsi, W. A., Major. L., Effect of bilayer period on properties of Cr/CrN multilayer coatings produced by laser ablation., Surface and Coatings Technology, Vol. 202, 2008, pp. 3501-3506.

Lee, C. K., Electrochemical behaviour of chromium nitride coatings with various preferred orientations deposited on steel by unbalanced magnetron sputtering., Materials Science & Technology, Vol. 22, No. 6, 2006, pp. 653-660.

Liu, C., Bi, Q. Leyland, A. Matthews, A., An electrochemical impedance spectroscopy study of the corrosion behaviour of PVD coated steels in 0.5 N NaCl aqueous solution: Part II.: EIS interpretation of corrosion behaviour., Corrosion Science, Vol. 45, No. 6, 2003, pp. 1257-1273.

Meas, Y., Técnicas electroquímicas de corriente directa para la determinación de la velocidad de corrosión, en Técnicas electroquímicas para el estudio de la corrosión., Juan Genescá Llongueras, Editor. 2008: Querétaro, México.

Olaya, J. J., Rodil, S. E. Muhl, S., Sánchez, E., Comparative study of chromium nitride coatings deposited by unbalanced and balanced magnetron sputtering., Thin Solid Films, Vol. 474 No. 1-2, 2005, pp. 119-126.

Olaya, J. J., Rodil, S. E. Muhl, S., Huerta, L., Influence of the energy parameter on the microstructure of chromium nitride coatings., Surface and Coatings Technology, Vol. 200 No. 20-21, 2006, pp. 5743-5750.

Saravanan, G., Mohan, S., Corrosion behavior of Cr electrodeposited from Cr(VI) and Cr(III)-baths using direct (DCD) and pulse electrodeposition (PED) techniques., Corrosion Science, Vol. 51, No. 1, 2009, pp. 197-202.

Silverstein, R., Webster, F., Kiemle, D., Infrared spectrometry, en Spectrometric Identification of Organic Compounds., Wiley, Editor. 2005. p. 71 - 111.

Zhang, X-h., Liu, D-x., Effect of TiN/Ti multilayer on fretting fatigue resistance of Ti-811 alloy at elevated temperature., Transactions of Noferrous Metal Society of China. Vol. 19, 2009, pp. 557-562.

License

Copyright (c) 2010 Magda Torres, Yuri Chipatecua, Diana Maritza Marulanda Cardona, Jhon Jairo Olaya Florez

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The authors or holders of the copyright for each article hereby confer exclusive, limited and free authorization on the Universidad Nacional de Colombia's journal Ingeniería e Investigación concerning the aforementioned article which, once it has been evaluated and approved, will be submitted for publication, in line with the following items:

1.    The version which has been corrected according to the evaluators' suggestions will be remitted and it will be made clear whether the aforementioned article is an unedited document regarding which the rights to be authorized are held and total responsibility will be assumed by the authors for the content of the work being submitted to Ingeniería e Investigación, the Universidad Nacional de Colombia and third-parties;

2.    The authorization conferred on the journal will come into force from the date on which it is included in the respective volume and issue of Ingeniería e Investigación in the Open Journal Systems and on the journal's main page (https://revistas.unal.edu.co/index.php/ingeinv), as well as in different databases and indices in which the publication is indexed;

3.    The authors authorize the Universidad Nacional de Colombia's journal Ingeniería e Investigación to publish the document in whatever required format (printed, digital, electronic or whatsoever known or yet to be discovered form) and authorize Ingeniería e Investigación to include the work in any indices and/or search engines deemed necessary for promoting its diffusion;

4.    The authors accept that such authorization is given free of charge and they, therefore, waive any right to receive remuneration from the publication, distribution, public communication and any use whatsoever referred to in the terms of this authorization.