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Title: Morphological and microstructural studies on aluminizing coating of carbon steel

Abstract

Hot dip aluminizing is one of the most effective methods of surface protection for steels and is gradually gaining popularity. The morphology and microstructure of an inter-metallic layer form on the surface of low carbon steel by hot dip aluminization treatment had been studied in detail. This effect has been investigated using optical and scanning electron microscopy, and X-ray diffraction. The result shows that the reaction between the steel and the molten aluminium leads to the formation of Fe–Al inter-metallic compounds on the steel surface. X-ray diffraction and electron microscopic studies showed that a two layer coating was formed consisting of an external Al layer and a (Fe{sub 2}Al{sub 5}) inter metallic on top of the substrate after hot dip aluminizing process. The inter-metallic layer is ‘thick’ and exhibits a finger-like growth into the steel. Microhardness testing shown that the intermetallic layer has high hardness followed by steel substrate and the lowest hardness was Al layer.

Authors:
; ; ;  [1]
  1. School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor (Malaysia)
Publication Date:
OSTI Identifier:
22262693
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1571; Journal Issue: 1; Conference: 2013 UKM FST postgraduate colloquium, Selangor (Malaysia), 3-4 Jul 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM; CARBON STEELS; ELECTRONS; LAYERS; MICROHARDNESS; MICROSTRUCTURE; SAFETY; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; SURFACES; X-RAY DIFFRACTION

Citation Formats

Samsu, Zaifol, Othman, Norinsan Kamil, Daud, Abd Razak, and Hussein, Hishammuddin. Morphological and microstructural studies on aluminizing coating of carbon steel. United States: N. p., 2013. Web. doi:10.1063/1.4858644.
Samsu, Zaifol, Othman, Norinsan Kamil, Daud, Abd Razak, & Hussein, Hishammuddin. Morphological and microstructural studies on aluminizing coating of carbon steel. United States. https://doi.org/10.1063/1.4858644
Samsu, Zaifol, Othman, Norinsan Kamil, Daud, Abd Razak, and Hussein, Hishammuddin. 2013. "Morphological and microstructural studies on aluminizing coating of carbon steel". United States. https://doi.org/10.1063/1.4858644.
@article{osti_22262693,
title = {Morphological and microstructural studies on aluminizing coating of carbon steel},
author = {Samsu, Zaifol and Othman, Norinsan Kamil and Daud, Abd Razak and Hussein, Hishammuddin},
abstractNote = {Hot dip aluminizing is one of the most effective methods of surface protection for steels and is gradually gaining popularity. The morphology and microstructure of an inter-metallic layer form on the surface of low carbon steel by hot dip aluminization treatment had been studied in detail. This effect has been investigated using optical and scanning electron microscopy, and X-ray diffraction. The result shows that the reaction between the steel and the molten aluminium leads to the formation of Fe–Al inter-metallic compounds on the steel surface. X-ray diffraction and electron microscopic studies showed that a two layer coating was formed consisting of an external Al layer and a (Fe{sub 2}Al{sub 5}) inter metallic on top of the substrate after hot dip aluminizing process. The inter-metallic layer is ‘thick’ and exhibits a finger-like growth into the steel. Microhardness testing shown that the intermetallic layer has high hardness followed by steel substrate and the lowest hardness was Al layer.},
doi = {10.1063/1.4858644},
url = {https://www.osti.gov/biblio/22262693}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1571,
place = {United States},
year = {Wed Nov 27 00:00:00 EST 2013},
month = {Wed Nov 27 00:00:00 EST 2013}
}