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  4. № 01/02 2019
  5. P. 39

OXIDATION RESISTANCE OF IRON ALUMINIDE MATERIALS

V.Syrovatka,
 
O.Umanskyi,
 
M.Yakovleva,
 
I.Martseniuk,
 
V.F.Labunets
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2019, #01/02
http://www.materials.kiev.ua/article/2788

Abstract

The influence of chromium additives on the structure and stability of high-temperature oxidation of Fe–Al-based alloys was studied. It has been established that powders and compact fused materials do not have significant differences as a result of high-temperature oxidation. In the oxidation process, the compositions containing chromium are less expose to oxidation due to the formation of complex compounds between alumina and chromium oxides. Chromium oxide slicks that have high fracture toughness in comparison with the aluminum oxide contribute to the formation of a dense protective scale.


COMPACT MATERIALS, HIGH-TEMPERATURE OXIDATION, IRON INTERMETALLIDES, OXIDE, SCALE

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