The compressive yield stress and bending strength of NiAl–CrB2 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.% CrB2 into the intermetallic is optimal to ensure the maximum bending strength of the composite at 500°C. The bending strength of NiAl–15 wt.% CrB2 composite at the experimental temperature 500°C exceeds that of the starting NiAl, by a factor of 3.
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Translated from Poroshkovaya Metallurgiya, Vol. 56, Nos. 11–12 (518), pp. 89–96, 2017.
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Umanskyi, O.P., Brodnikovskyi, M.P., Ukrainets, M.S. et al. Effect of Chromium Diboride Additives on Strength Properties of NiAl–CrB2 Composites in a Wide Temperature Range. Powder Metall Met Ceram 56, 681–687 (2018). https://doi.org/10.1007/s11106-018-9943-7
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DOI: https://doi.org/10.1007/s11106-018-9943-7