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HIGH-TEMPERATURE OXIDATION BEHAVIOUR OF Fe11Al BASED ALLOYS

Syahril Syahril(1), Wagiyo H(2), Bambang Sugeng(3), Ari Handayani(4),


(1) Research and Development Centre for Materials Science and Technology-Batan Kawasan Puspiptek, Serpong,,Tangerang 15314
(2) Research and Development Centre for Materials Science and Technology-Batan Kawasan Puspiptek, Serpong,,Tangerang 15314
(3) Research and Development Centre for Materials Science and Technology-Batan Kawasan Puspiptek, Serpong,,Tangerang 15314
(4) Research and Development Centre for Materials Science and Technology-Batan Kawasan Puspiptek, Serpong,,Tangerang 15314
Corresponding Author

Abstract


HIGH-TEMPERATURE OXIDATION BEHAVIOUR OF Fe11Al BASED ALLOYS. Thermomechanically treated Fe11Al based alloys were isothermally oxidised in air at 900, 1000 and 1100 °C respectively. Their oxidation behaviour was studied using thermogravimetric analyser (TGA), X-ray diffractometer (XRD), and scanning electron microscope (SEM). It was found that the oxide scales formed on alloys studied consisted mainly of α- and θ-Al2O3. Additions of 0.5 wt. % Nb and Mo significantly improved the oxidation resistance of the alloys.

Keywords


iron aluminium alloys, thermomechanical treatment, ternary alloying additions, oxidation resistance.

Full Text: PDF (Bahasa Indonesia)

DOI: 10.17146/jsmi.2003.4.2.4877