Badaruddin, Mohammad and Chaur Jeng Wang, CJW and Wardono, Herry and Tarkono, Tarkono and Asmi, Dwi (2016) Similarity : High-Temperature Oxidation Behavior of Aluminized AISI 4130 Steel. AIP Publishing, 1305 Walt Whitman Rd Suite 110 Melville, NY 11747, US.
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Abstract
AISI 4130 steel was dipped into a molten aluminum bath at 700oC for 16 s to produce an aluminide coating on the steel substrate. The coating, which consisted of an Al-rich layer and an FeAl3 and Fe2Al5 intermetallic layer, strongly adhered to the steel substrate. High-temperature oxidation of the bare steel and aluminized steel was performed by thermogravimetry at 850oC for 49 h in static air. The oxidation products were characterized by scanning electron microscopy and energy-dispersive spectroscopy. The aluminide coating could increase the oxidation resistance of the bare steel by a factor of ~19. The increase in high-temperature oxidation resistance of the aluminized steel is attributed to the formation of protective alumina scale (αAl2O3). Although iron oxide nodules grew on the aluminide coating surface, the oxidation rate of the aluminide coatings was very low. After 49 h of oxidation, agglomerates of αAl2O3 fine grains grew on the rod-shaped FeAl phases.
| Item Type: | Other |
|---|---|
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Mesin |
| Depositing User: | TARKONO |
| Date Deposited: | 08 Apr 2023 13:28 |
| Last Modified: | 08 Apr 2023 13:28 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/49881 |
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