Investigation of Al2O3-Modified Aluminide on 304SS: Microstructural Evolution, Hardness and Growth Kinetics through Slurry Aluminizing
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Date
2024-12-20
Journal Title
Journal ISSN
Volume Title
Publisher
Published by Trans Tech Publications
Abstract
The
alumina
alumina
alumina
alumina
alumina
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
microstructure
2O3)-
aluminide
aluminide
aluminide
aluminide
aluminide
coating
were investigated at 650℃, 680℃, and 700℃ for various durations (4, 6, 8, 10 hours) using the
slurry aluminizing process. The
coating
were investigated at 650℃, 680℃, and 700℃ for various durations (4, 6, 8, 10 hours) using the
slurry aluminizing process. The
coating
were investigated at 650℃, 680℃, and 700℃ for various durations (4, 6, 8, 10 hours) using the
slurry aluminizing process. The
coating
were investigated at 650℃, 680℃, and 700℃ for various durations (4, 6, 8, 10 hours) using the
slurry aluminizing process. The
coating
were investigated at 650℃, 680℃, and 700℃ for various durations (4, 6, 8, 10 hours) using the
slurry aluminizing process. The
modifiedwere investigated at 650℃, 680℃, and 700℃ for various durations (4, 6, 8, and 10 hours) using the slurry aluminizing process. The
heat-treated
heat-treated
heat-treated
heat-treated
-treated
samples
samples
samples
samples
samples
samples
were
were
were
analyzed
analyzed
analyzed
analyzed
through
through
through
through
through
through
through
scanning
scanning
scanning
scanning
scanning
scanning
electron
microscopy (SEM), energy dispersive spectroscopy EDS), and X-ray diffraction XRD) to assess
microstructural evolution, elemental composition, phases of the coating. SEM
electron
microscopy (SEM), energy dispersive spectroscopy EDS), and X-ray diffraction XRD) to assess
microstructural evolution, elemental composition, phases of the coating. SEM
electron
microscopy (SEM), energy dispersive spectroscopy EDS), and X-ray diffraction XRD) to assess
microstructural evolution, elemental composition, phases of the coating. SEM
electron
microscopy (SEM), energy dispersive spectroscopy EDS), and X-ray diffraction XRD) to assess
microstructural evolution, elemental composition, phases of the coating. SEM
electron
microscopy (SEM), energy dispersive spectroscopy EDS), and X-ray diffraction XRD) to assess
microstructural evolution, elemental composition, phases of the coating. SEM
microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD) to assess microstructural evolution, elemental composition, and phases of the coating. SEM
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
observations
revealed a two-layer aluminide coating, comprising an Al-rich
intermetallic (FeAl3) and Fe-FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880
to 990 HV, while FeAl, with between 610 700 HV. The growth kinetics indicated the
thickness of layers increased both aluminizing temperature time, following
revealed a two-layer aluminide coating, comprising an Al-rich intermetallic (FeAl3) and a Fe-rich intermetallic (FeAl). Microhardness tests showed that FeAl3 had hardness values ranging from 880 to 990 HV, while FeAl, with values between 610 and 700 HV. The growth kinetics indicated that the thickness of the aluminide layers increased with both the aluminizing temperature and time, following a parabolic growth law. The activation energy for the of FeAl was 343.15 kJ/mol.
Description
Keywords
slurry aluminizing, 304SS, intermetallic, hardness, activation energy
Citation
Ambali, I. O., Tan, S.M., Jalaluddin, M.A., Anasyida, A.S., Abdullah, T.K., & Dhindaw, B.K. (2024). Investigation of Al2O3-Modified Aluminide on 304SS: Microstructural Evolution, Hardness and Growth Kinetics through Slurry Aluminizing. International Journal of Engineering Research in Africa.72, 1-12. Published by Trans Tech Publications Ltd,Q3/Scopus Available online at: TOC: https://www.scientific.net/JERA.72.1 URL: https://www.scientific.net/JERA.72.1