Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance

Authors

  • Andrea Muñoz-Mizuno Universidad Autónoma del Caribe
  • Mercedes Cely-Bautista Universidad Autónoma del Caribe
  • Javier Jaramillo-Colpas Institución Universitaria de la Costa
  • Duberney Hincapié Universidade de São Paulo
  • José Wilmar Calderón-Hernández Universidade de São Paulo

Keywords:

Nanostructures, TiO2, Nanohardness, EIS, Thermal oxidation

Abstract

This article aimed to analyze the effect of thermal oxidation on corrosion resistance and hardness properties of TiO2 nanostructures obtained by anodizing in HF/H3PO4 solution. TiO2 nanostructures on Ti6Al4V were subjected to thermal oxidation treatments ranging from 500ºC to 620ºC for 2 hours. Surface morphology was evaluated using scanning electron microscopy, and hardness properties were obtained through nanoindentation. Results showed that thermally oxidized TiO2 nanostructures increased hardness and corrosion resistance compared to the substrate, maintaining their mixed or tubular structure.

 

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Author Biographies

Andrea Muñoz-Mizuno, Universidad Autónoma del Caribe

Universidad Autónoma del Caribe, Grupo de Investigación en Materiales, Procesos y Tecnologías de Fabricación

Mercedes Cely-Bautista, Universidad Autónoma del Caribe

Universidad Autónoma del Caribe, Grupo de Investigación en Materiales, Procesos y Tecnologías de Fabricación

Javier Jaramillo-Colpas, Institución Universitaria de la Costa

Institución Universitaria de la Costa, Grupo de Investigación en Ciencias Naturales y Exactas

Duberney Hincapié, Universidade de São Paulo

Universidade de São Paulo, Departamento de Engenharia Metalúrgica e de Materiais

José Wilmar Calderón-Hernández, Universidade de São Paulo

Universidade de São Paulo, Departamento de Engenharia Metalúrgica e de Materiais

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Published

2024-12-20

How to Cite

[1]
A. Muñoz-Mizuno, M. Cely-Bautista, J. Jaramillo-Colpas, D. Hincapié, and J. W. Calderón-Hernández, “Effect on thermal oxidation in TiO2 nanostructures on nanohardness and corrosion resistance”, Ingeniare, Rev. chil. ing., vol. 28, no. 3, Dec. 2024.

Issue

Vol. 28 No. 3 (2020): Volumen 28 Issue 3

Section

Articulos

License

Copyright (c) 2024 Revista Ingeniare

Creative Commons License

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

Authors retain copyright of their work and grant the journal the right of first publication under the Creative Commons CC-BY Attribution License, which permits unrestricted use, distribution, and reproduction provided the original authorship and the journal’s first publication are acknowledged.

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