| Autor: |
Svetlov, I. L., Karpov, M. I., Stroganova, T. S., Zaitsev, D. V., Artemenko, Yu. V. |
| Zdroj: |
Russian Metallurgy (Metally); Apr2020, Vol. 2020 Issue 4, p396-400, 5p |
| Abstrakt: |
An Nb–Si–X (X = Ti, Mo, Hf, Zr, Al, Cr) in situ composite material with the structure formed by directional solidification is subjected o creep tests during tension in vacuum at a temperature of 1300°C. The creep strength at a residual strain tolerance of 1% in 100 h and the exponent in the stress dependence of the steady-state creep rate = Aσ n (n = 2.35) are determined. The creep of the composite material under the experimental conditions is shown to occur via a dislocation mechanism fully or partly, since dislocation networks in the matrix and silicides and dislocations in slip bands are observed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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