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  4. № 11/12 2018
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EFFECT OF FeNiCrBSiC–MeB2 MATERIAL COMPOSITION ON THE OXIDATION BEHAVIOR AT HIGH TEMPERATURES

O.Umanskyi,
 
M.Storozhenko,
 
M.Koshelev,
 
M.M.Antonov,
 
† M.Vasylkivska,
 
I.Timofeeva
 

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, 2018, #11/12
http://www.materials.kiev.ua/article/2687

Abstract

The effect of TiB2 and CrB2 additives on the oxidation behavior of NiCrBSiC and Fe-NiCrBSiC alloy composite materials has been studied in air environment at temperatures up to 800 оС. It is found that the FeNiCrBSiC–20 wt.% TiB2 composite material is most intensively oxidized. Oxidation occurs selectively: titanium diboride is oxidized at temperatures of 450–550 ºC to form TiO2 and B2O3 oxides and the self-flux alloy components are oxidized in the temperature range 570–730 ºC.


CHROMIUM BORIDE, OXIDATION, SELF-FLUXING ALLOY, TITANIUM DIBORIDE

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