Effect of pretreatment using ultrasonic technique with Sic or Al2O3 on high temperature oxidation behavior of the FeCrAl

Document Type : Original Article

Authors

1 Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Johor 86400, Malaysia.

2 Center for Technology of Nuclear Industry Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek Gd. 71, Tangerang 15314, Indonesia.

Abstract

Abstract:
High surface area with catalyst was the most required in the catalytic converter due to the harmful gas emission reduction effectively. Therefore, the aim of this paper is to show the effect of pretreatment using ultrasonic technique with SiC or Al2O3 on high temperature oxidation behavior of the FeCrAl. The pretreatment conducted by agitating the FeCrAl in the methanol solution consisting of SiC or Al2O3 followed with ultrasonic process. Nickel electroplating used for deposited nickel as catalyst application. Oxidation test then were carried out and the morphology of oxidized specimens was examined using scanning electron microscope (SEM) in combination with energy dispersive X-ray spectroscopy (EDS). The pretreatment using ultrasonic technique with SiC on FeCrAl continued nickel electroplating exhibited the highest oxidation resistance compared to Al2O3. The pretreatment using ultrasonic with SiC or Al2O3 provides roughness on FeCrAl surface which is influenced to the nickel electroplating homogenity and stability. The pretreatment using ultrasonic with SiC shows the nickel electroplating deposition more homogeneous and stable so that better high temperature oxidation resistance.

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