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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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