EVALUATION OF RESISTANCE TO EROSION CORROSION OF MULTILAYER TiN/AlTiN

Authors

  • Willian Arnulfo Aperador Chaparro Profesor Universidad Militar Nueva Granada Escuela Colombiana de Ingeniería Julio Garavito
  • Cesar Andres Amaya Hoyos Instructor de Recubrimientos Laboratorio de Recubrimientos Duros CDT ASTIN SENA
  • Jorge Hernando Bautista Ruíz Profesor Asociado Departamento de Física, Universidad Francisco de Paula Santander

Abstract

Thin films were deposited in multilayer TiN / AlTiN with periods of 2, 6, 12 and 24 bi-layers on AISI 1045 steel substrates, by RF magnetron sputtering system on Ti and Al targets (99.99%) in Ar/N2 atmosphere. The multi-layers were tested against to corrosion, erosion and corrosion erosion 90° angle impact and 0.5 M NaCl solution and silica, and analyzing the effect of number of bi-layers on the corrosion resistance of these coatings. The electrochemical characterization was performed by Tafel polarization curves and micro-structural by scanning electron microscopy. The study showed decreased rate corrosion on substrate, it diminished from 2291.05 mpy to 351.24 mpy with 2 bi-layers, and 15.01 mpy with 24 bi-layers. These results corroborate the good acting of the bi-layers in the corrosion erosion resistance. From the results of scanning electron microscopy can confirm the protective effect of coatings on the substrate as well as the increasing number of bi-layers

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Author Biographies

Willian Arnulfo Aperador Chaparro, Profesor Universidad Militar Nueva Granada Escuela Colombiana de Ingeniería Julio Garavito

Ingeniería Mecatrónica, Coordinador Maestría en Ingeniería Mecatrónica

Cesar Andres Amaya Hoyos, Instructor de Recubrimientos Laboratorio de Recubrimientos Duros CDT ASTIN SENA

Sector recubrimientos duros

Jorge Hernando Bautista Ruíz, Profesor Asociado Departamento de Física, Universidad Francisco de Paula Santander

Profesor Asociado, Departamento de Física

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Published

2011-09-11

How to Cite

Aperador Chaparro, W. A., Amaya Hoyos, C. A., & Bautista Ruíz, J. H. (2011). EVALUATION OF RESISTANCE TO EROSION CORROSION OF MULTILAYER TiN/AlTiN. LatinAmerican Journal of Metallurgy and Materials, 210–217. Retrieved from https://www.rlmm.org/ojs/index.php/rlmm/article/view/239

Issue

2012, 32(2)

Section

Regular Articles

License

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