Study of heat treatment effect on structure, dendritic liquation parameters and time to failure of Ni3Al-based alloy containing Re

Bazyleva O.A., Unchikova M.V., Turenko E.Yu., Bagetov V.V., Shestakov A.V.
UDC
669.017.165
DOI
10.18577/2307-6046-2016-0-10-4-4
Article PDF (Russian) (1.05 MB)
How to cite
Bazyleva O.A., Unchikova M.V., Turenko E.Yu., Bagetov V.V., Shestakov A.V. Study of heat treatment effect on structure, dendritic liquation parameters and time to failure of Ni3Al-based alloy containing Re // Proceedings of VIAM. 2016. No. 10. DOI: 10.18577/2307-6046-2016-0-10-4-4. URL: https://test.viam.ru/en/journal/2016/10/4
Keywords
intermetallic, Ni3Al compound, single crystal, long-term strength, microstructure, crystallographic orientation, time to failure, liquation, high temperature annealing.
Abstract

The influence of high temperature annealing on the microstructure, dendritic liquation parameters and time to failure of intermetallic Re-containing alloy VIN1 (VKNA-25) is investigated. It is shown that reduction of liquation due to annealing leads to rise of time to failure of Ni3Al-based intermetallic alloy. By regression analysis the correlation between time to failure and parameters of annealing is fixed. The convergence of the regression model and experimental data is <1,5%.

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