SciELO - Scientific Electronic Library Online

 
vol.62 número2Symmetries of the hamiltonian operator and constants of motionElectrical circuits described by a fractional derivative with regular Kernel índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Revista mexicana de física

versión impresa ISSN 0035-001X

Rev. mex. fis. vol.62 no.2 México mar./abr. 2016

 

Investigación

 

Electro chemical characterization of VXNbYCZ/BiXTiYOZ coatings produced through thermo-reactive diffusion and the sputtering technique

 

S.A. Castro-Hermosaa,b, J.E. Alfonsoa,* and J.J. Olayaa,b

 

a Grupo de Ciencia de Materiales y Superficies, Departamento de Física, Universidad Nacional de Colombia, Bogotá AA 14490, Colombia. * e-mail: jealfonsoo@unal.edu.co

b Grupo de Investigación Análisis de Fallas, Integridad y Superficies, Universidad Nacional de Colombia, Bogotá AA 14490, Colombia.

 

Received 23 February 2015;
accepted 4 January 2016

 

Abstract

We present an experimental study of the structural evolution of a bilayer VX NbY CZ /Bix TiY OZ coating produced via thermo-reactive diffusion (TRD) and the RF sputtering process on D2 steel substrate. The TRD treatments were carried out in a molten mixture consisting of borax, ferro-niobium, ferro-vanadium, and aluminum, at 1313 K for 3 hours, using a resistance-heating furnace. BiXTiYOZ coatings were deposited using RF magnetron sputtering on TRD coatings, in order to carry out a study of the corrosion behavior of this compound. The crystallographic structure of the coatings was determined via X-ray diffraction (XRD), the corrosion resistance was analyzed through the po-tentiodynamic polarization test (Tafel Extrapolation) and electrochemical impedance spectroscopic analysis (EIS). XRD patterns showed that the ternary coating (VNbC2) was preferentially oriented along the [200] direction with a cubic-centered face structure, and the BiXTiYOZ coatings were amorphous. The electrochemical studies showed that the resistance corrosion of the coatings increased with respect to the bare substrate, and that polarization resistance in the bilayer coatings increased with respect to the ternary coatings, suggesting that the titanate has anticorrosive barrier effects.

Keywords: Thermo reactive diffusion; bismuth titanate coatings; corrosion resistance; RF sputtering.

PACS: 43.50.GF; 79.20.RF; 82.425.Bb; 81.15.-Z

 

DESCARGAR ARTÍCULO EN FORMATO PDF

 

Acknowledgments

The authors are grateful to the Universidad Nacional de Colombia for financial support grants through the projects 15222 and 15059 of the DIB, and the founds of patrimonio autónomo Fondo Nacional de Financiamiento para la Ciencia, la Tecnología y la Innovacion Francisco Jose de Caldas.

 

1. X.S. Fan, Z.G. Yang, C. Zhang, Y.D. Zhang, and H.Q. Che, Surf. Coatings Technol. 205 (2010) 641.         [ Links ]

2. B. Chicco, W. Borbidge, and E. Summerville, Mater. Sci. Eng. A. 266 (1999) 62.         [ Links ]

3. C. Aguzzoli, C.A. Figueroa, F.S. de Souza, A. Spinelli, and I.J.R. Baumvol, Surf. Coatings Technol 206 (2012) 2725.         [ Links ]

4. M. Braic, V. Braic, M. Balaceanu, A. Vladescu, C.N. Zoita, and I. Titorencu, Thin Solid Films 519 (2011) 4064.         [ Links ]

5. F. Castillejo, D. Marulanda, and J. Olaya, Rev. LatinAm. Metal. Mat. 34 (2014) 230.         [ Links ]

6. M.J. Pinzon, J. Florez, and J.E. Alfonso, La Acad. Colomb. Ciencias 37 (2013) 89.         [ Links ]

7. S. Paldey, and S.C. Dee, Mater. Sci. Eng. A. 342 (2003) 58.         [ Links ]

8. M. Azizi, and M. Soltanieh, IJE Transactions B: Applications 23 (2010) 77.         [ Links ]

9. Castillejo, and J.J. Olaya, Recubrimientos de carburos ternarios depositados con la teícnica TRD. Tesis de doctorado, Universidad Nacional de Colombia, Medellín.         [ Links ]

10. J.E. Alfonso, J. Torres, and J.F. Marco, Brazilian J. Phys. 36 (2006) 994.         [ Links ]

11. F. Castillejo, Rev. Latinoam. Metal. Y. Mater. 34 (2010) 230.         [ Links ]

12. Z.J. Shan, Z.G. Pang, F.Q. Luo, and F.D. Wei, Surf. Coatings Technol. 206 (2012) 4322.         [ Links ]

13. C.K.N. Oliveira, R.M. Mmioz Riofano, and L.C. Casteletti, Mater. Lett. 59 (2005) 1719.         [ Links ]

14. E. Alfonso, J. Olaya, and G.I. Cubillos, Crystallization e Science and Technology, Chapter 15, (In Tech., Rijeka, 2012) pp. 397 e 432.         [ Links ]

15. H. Lipson, the Study of Metals and Alloys by X-ray Powder Diffraction Methods by X-ray powder diffraction methods. (University College Cardiff, Cardiff, UK, 2001).         [ Links ]

16. A.K. Srivastav, A.M. Panindre, and B.S. Murty, XRD, Trans. Indian Inst. Met. 66 (2013) 409.         [ Links ]

17. Y. Liu, H. Li, Z. Li, EIS, Int. J. Electrochem. Sci. 8 (2013) 7753.         [ Links ]

18. F.C. Walsh, C.P. De Leon, C. Kerr, S. Court, and B.D. Barker, Surf. Coatings. 202 (2008) 5092.         [ Links ]

19. A. Zeng, E. Liu, S. Zhang, S.N. Tan, P. Hing, and I.F. Annergren, Thin Solid Films. 426 (2003) 258.         [ Links ]

20. A. Popova, M. Christov, and A. Vasilev, Corros. Sci. 53 (2011) 1770.         [ Links ]

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons