Effect of Chromium Diboride Additives on Strength Properties of NiAl-CrB.sub.2 Composites in a Wide Temperature Range

The compressive yield stress and bending strength of NiAl-CrB.sub.2 composites are studied in the 20-800°C temperature range. The effect of the composite phase ratio and experimental temperature on the composite strength for different loading patterns is established. During tensile stresses, the int...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2018-03, Vol.56 (11-12), p.681
Main Authors: Umanskyi, O. P, Brodnikovskyi, M. P, Ukrainets, M. S, Poliarus, O. M, Stelmakh, O. U, Brodnikovskyi, D. M
Format: Article
Language:English
Subjects:
Intermetallic compounds
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Summary:The compressive yield stress and bending strength of NiAl-CrB.sub.2 composites are studied in the 20-800°C temperature range. The effect of the composite phase ratio and experimental temperature on the composite strength for different loading patterns is established. During tensile stresses, the introduction of 15 wt.% CrB.sub.2 into the intermetallic is optimal to ensure the maximum bending strength of the composite at 500°C. The bending strength of NiAl-15 wt.% CrB.sub.2 composite at the experimental temperature 500°C exceeds that of the starting NiAl, by a factor of 3.
ISSN:1068-1302
DOI:10.1007/s11106-018-9943-7