Investigation of Oxidation Behaviour of Plasma Sprayed Carbon Nanotubes-Alumina Coated ASME-SA213-T22 Boiler Tube Steel

Abstract

Abstract

In this research work, carbon nanotubes reinforced Al2O3 coated ASME-SA213-T22 boiler

tube steel was investigated for high temperature oxidation behaviour at 900ï‚°C temperature in

the air. The coatings were deposited using plasma spray technique and NiCr was used as

bond coat before applying CNTs-Al2O3 coatings. The hot corrosion studies were conducted on

uncoated as well as plasma spray coated specimens in air at 900°C under cyclic conditions.

The thermogravimetric technique was used to establish kinetics of corrosion. X-ray diffraction

(XRD) and scanning electron microscopy/energy-dispersive x-ray analysis (SEM/EDAX)

techniques were used to analyse the corrosion products. The CNTs reinforced Alumina

coatings enhance resistance to corrosion significantly.

Keywords: Oxidation, thermal spray, carbon nanotubes, boiler steel, XRD, SEM/EDAX

Cite this Article

Rakesh Goyal, Buta Singh Sidhu, Vikas

Chawla. Investigation of Oxidation

Behaviour of Plasma Sprayed Carbon

Nanotubes-Alumina Coated ASMESA213-

T22 Boiler Tube Steel. Journal

of Nanoscience, Nanoengineering and

Applications. 2017; 7(2): 10–22p.