STUDY ON CORROSION RESISTANCE OF CARBON NANOTUBES REINFORCED Al2O3 COATING

Authors

  • Nguyen Van Tuan Institute for Tropical Technology, VAST, 18, Hoang Quoc Viet, Cau Giay, Ha Noi, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/55/5B/12223

Keywords:

Al2O3 coating, air plasma spray, carbon nanotubes

Abstract

This paper presents our research on the reinforcement with 1 % of carbon nanotubes (CNT) for a ceramic Al2O3 coating applied by air plasma spray (APS) on CT3 steel. The corrosion resistances of both CNTs reinforced and non-CNTs reinforced Al2O3 coatings were investigated by using different such techniques as: potentiodynamic polarization; electrochemical impedance spectroscopy (EIS); salt spray and erosion corrosion tests.

The obtained results show positive effects of CNT to improve the corrosion protection of the Al2O3 coating: time of appearance of first rust points on the surface in the salt spray test increased from 2 hours for pure Al2O3 coating to 24 hours for the CNTs-Al2O3 one; the erosion-corrosion resistance of the CNTs-Al2O3 coating increased about 17 % in comparison with the one of the Al2O3 coating.

 

Downloads

Download data is not yet available.

Downloads

Published

2018-03-24

How to Cite

Tuan, N. V. (2018). STUDY ON CORROSION RESISTANCE OF CARBON NANOTUBES REINFORCED Al2O3 COATING. Vietnam Journal of Science and Technology, 55(5B), 171. https://doi.org/10.15625/2525-2518/55/5B/12223

Issue

Section

Articles