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Influence of silicide coatings on the mechanical properties of the NT-50 alloy

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Abstract

We have investigated the effect of silicide coatings on the ultimate strength of NT-50 alloy over the temperature range −196...+1100 °C. From 196 to 800 °C the ultimate strength of silicidated specimens was lower than that of the initial and annealed alloy whereas from 900 °C it was slightly higher. We have also examined the effect of silicide coatings on the relative elongation of NT-50 alloy samples. Over the temperature range −196...+1100 °C, the relative elongation of specimens annealed in a vacuum of 6.7 · 10−3 Pa at 1250 °C for 4 h was found to be lower than that of the silicidated specimens. This is attributed to the dissolution of the residual gases (O2, N2, H2, CO, and CO2) under vacuum annealing.

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Authors and Affiliations

  1. National Scientific Center “Kharkov Physics and Technology Institute.”, Ukraine

    P. I. Glushko, V. I. Savchenko, V. F. Trofimov & B. M. Shirokov

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  1. P. I. Glushko
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  2. V. I. Savchenko
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  3. V. F. Trofimov
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  4. B. M. Shirokov
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Translated from Poroshkovaya Metallurgiya, Nos. 11–12(446), pp. 36–39, November–December, 2005.

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Glushko, P.I., Savchenko, V.I., Trofimov, V.F. et al. Influence of silicide coatings on the mechanical properties of the NT-50 alloy. Powder Metall Met Ceram 44, 545–547 (2005). https://doi.org/10.1007/s11106-006-0023-z

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  • DOI: https://doi.org/10.1007/s11106-006-0023-z

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