Possibility of enhancement of the high-temperature strength and the heat resistance of a nickel aluminide–based structural intermetallic alloy


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Abstract

The assimilation of a number of rare-earth metals (REM = praseodymium, neodymium, erbium) in a cast high-temperature nickel aluminide–based intermetallic alloy and the effect of REM alloying of the alloy on the critical temperatures, the high-temperature strength, and the heat resistance (time to failure) of the structural alloy are studied. It is shown that the heat resistance and the time to failure of the alloy at 1200°C can be increased by microalloying of the intermetallic alloy with REM.

About the authors

O. A. Bazyleva

VIAM—All-Russia Institute of Aviation Materials

Email: elargin@mail.ru
Russian Federation, ul. Radio 17, Moscow, 103767

A. V. Shestakov

VIAM—All-Russia Institute of Aviation Materials

Email: elargin@mail.ru
Russian Federation, ul. Radio 17, Moscow, 103767

E. G. Arginbaeva

VIAM—All-Russia Institute of Aviation Materials

Author for correspondence.
Email: elargin@mail.ru
Russian Federation, ul. Radio 17, Moscow, 103767

E. Yu. Turenko

VIAM—All-Russia Institute of Aviation Materials

Email: elargin@mail.ru
Russian Federation, ul. Radio 17, Moscow, 103767


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