Iranian Journal of Materials Science and Engineering
Iran University of Science & Technology
Tue, Nov 26, 2024
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Volume 12, Issue 3 (September 2015)
IJMSE 2015, 12(3): 88-94 |
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Mohsenifar A, Aboutalebi M R, Aboutalebi S H. EFFECT OF HIGH TEMPERATURE OXIDATION ON THE CORROSION BEHAVIOR OF ALUMINIZED LOW CARBON STEEL IN MOLTEN ALUMINUM. IJMSE 2015; 12 (3) :88-94
URL: http://ijmse.iust.ac.ir/article-1-834-en.html
URL: http://ijmse.iust.ac.ir/article-1-834-en.html
Abstract: (23096 Views)
Hot dip aluminizing was carried out on the low carbon steel rod under optimized conditions. The aluminized
samples were further oxidized at 1000̊C in air atmosphere at two different times of 20 and 60 minutes. Microstructure
study and phase analysis were studied by scanning electron microscopy and X-ray diffraction methods, respectively.
The characterization of the coating showed that, Fe2
Al5
has been the major phase formed on the surface of specimen
before heat treatment. Following the oxidation of the coating at high temperature, Al
2O3
was formed on the surface of
coating while Fe
2
Al5
transformed into FeAl and Fe
3
Al which are favorable to the hot corrosion resistance of the
coating. Corrosion resistance of aluminized samples before and after heat treatment was evaluated by rotating the
samples in the molten aluminum at 700 ̊C for various times and the dissolution rate was determined. The obtained
results showed that by oxidizing the coating at high temperature, the corrosion resistance of the samples in molten
aluminum improves significantly.
Type of Study: Research Paper |
Subject:
forming and mechanical properties
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