Oxidation Behavior of Fe-15Cu-10Al Ternary Alloys at 700°C

Jun Huai Xiang; Xian Chao Xu; Wei Wang

doi:10.4028/www.scientific.net/AMM.598.51

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Oxidation Behavior of Fe-15Cu-10Al Ternary Alloys at 700°C
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 598Oxidation Behavior of Fe-15Cu-10Al Ternary Alloys...

Oxidation Behavior of Fe-15Cu-10Al Ternary Alloys at 700°C

Abstract:

The oxidation behavior of Fe-15Cu-10Al alloy was investigated at 700°C. Oxidation kinetics of the alloy conformed nearly to the parabolic rate law. The scales were composed mainly of alumina, plus a few nodules rich in iron. The very low oxidation rate of Fe-15Cu-10Al alloy showed that 10at.% Al level reached the critical Al content to form a complete Al₂O₃ external layer. Compared with the corresponding Fe-10Al binary alloy, the addition of 15at.% Cu played a beneficial role for the establishment of the full protective alumina layer.