Changes in the Structure and Properties of Single-Crystal Refractory Alloys Under Long-Term Operation


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Abstract

The structure and properties of carbon-containing single-crystal alloy ZhS32 and carbonless single-crystal alloys ZhS36, VZhM4 and VZhM5U are studied after 500 – 3000-h aging at 850 – 1100°C. The resistance to elastoplastic strain, creep and fatigue and the characteristics of long-term strength of the alloys are determined. It is shown that the expected values of long-term strength and creep resistance of the single-crystal alloys should be corrected with allowance for the changes in their initial structure after long-term operation.

About the authors

E. A. Tikhomirova

Joint-Stock Company “Klimov”

Author for correspondence.
Email: klimov@klimov.ru
Russian Federation, St. Petersburg

A. I. Rybnikov

Joint-Stock Company “I. I. Polzunov Scientific and Development Association on Research and Design of Power Equipment”

Email: klimov@klimov.ru
Russian Federation, St. Petersburg

L. B. Getsov

Joint-Stock Company “I. I. Polzunov Scientific and Development Association on Research and Design of Power Equipment”

Email: klimov@klimov.ru
Russian Federation, St. Petersburg

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