PRODUCTION AND CHARACTERIZATION OF SILISIDE COATING ON MIRRAX ESR ALLOY BY PACK CEMENTATION METHOD

1 YENER Tuba
Co-authors:
2 GÜRPINAR NALBUROGLU Göknil 2 YENER S. Cagri
Institutions:
1 Department of Metallurgy and Materials Engineering, Faculty of Engineering, Sakarya University, Sakarya, Turkey, tcerezci@sakarya.edu.tr
2 Institute Of Natural Sciences, Sakarya University, Sakarya, Turkey, ggulpinar@gmail.com
3 Department of Electric and Electronic Engineering, Faculty of Engineering, Sakarya University, Sakarya, Turkey, syener@sakarya.edu.tr
Conference:
33rd International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 22 - 24, 2024
Proceedings:
Proceedings 33rd International Conference on Metallurgy and Materials
Pages:
269-273
ISBN:
978-80-88365-21-1
ISSN:
2694-9296
Published:
26th June 2024
Metrics:
15 views / 21 downloads
Abstract

<div>The pack-cementation technique was used to manufacture iron (Fe) silicides on Mirrax steel in this study. In an open atmospheric furnace, pack siliconizing process was performed using silicon (Si), ammonium chloride (NH4Cl), and alumina (Al2O3) at 900-950-1000°C and with variable deposition periods of 2-4-6 h. Utilizing scanning electron microscopy-energy dispersive X-ray spectroscopy, the appearance and structure of silicide layers were examined. It was noted that the silicide layers, which were smooth, uniform, and lacked notable porosity, had good bonding with the matrix. By using X-ray diffraction analysis, dominant phase is Fe3Si was determined. The coating layer thickness increased with process time and temperature. Additionally, the activation energy for the development of the siliconizing layer is determined. Due to the creation of a layer with a smoother morphology, less porosities and oxygen impurities, and an appropriate thickness silicon layer have been obtained.</div>

Keywords: Pack siliconizing, coating, kinetic, activation energy.

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