Effect of FeNiCrBSiC–MeB2 Material Composition on the Oxidation Behavior at High Temperatures

• Published in: Powder metallurgy and metal ceramics Vol. 57; no. 11-12; pp. 670 - 678
• Main Authors: Umanskyi, O. P., Storozhenko, M. S., Koshelev, M. V., Antonov, M. M., Vasylkivska, M. A., Tymofeeva, I. I.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-03-2019; Springer Nature B.V
• Subjects: Additives; Boron oxides; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composite Materials; Composites; Fluxing; Glass; Materials Science; Metallic Materials; Natural Materials; Oxidation; Titanium diboride; Titanium dioxide; oxidation; titanium diboride; self-fluxing alloy; chromium diboride
• ISSN: 1068-1302; 1573-9066
• DOI: 10.1007/s11106-019-00030-x

The effect of TiB
2
and CrB
2
additives on the oxidation behavior of composites made of the NiCrBSiC and FeNiCrBSiC self-fluxing alloys has been studied in air at temperatures to 800°C. It is found that the FeNiCrBSiC–20 wt.% TiB
2
composite is oxidized most intensively. Oxidation occurs selectively: titanium diboride is oxidized at 450–550°C to form TiO
2
and B
2
O
3
, and self-fluxing alloy components are oxidized at 570–730°C.