Deformation and fracture strength of single-crystal superalloys under static and cyclic loading

Abstract

The peculiarities of short-term resistance to tension/compression, creep, long-term strength and thermal fatigue of single-crystal superalloys for different crystallographic orientations and temperatures are considered. The failure criteria are proposed using a unified measures equivalent stress (strain) for the cubic system, allowing to compute adequate strength and durability of single crystal materials under complex multi-axial inhomogeneous stress state, which is characteristic for gas turbine engine blades during the operation.

About the authors

A. S. Semenov

Saint Petersburg State Polytechnical University

Author for correspondence.
Email: Semenov.Artem@googlemail.com

Candidate of Science (physics and mathematics)

Associated professor of the Department of «Mechanics and Control Processes»

Russian Federation

L. B. Getsov

NPO CKTI

Email: guetsov@yahoo.com

Doctor of Science (Engineering), Chef of sciences

Russian Federation

S. G. Semenov

Saint Petersburg State Polytechnical University

Email: ssgrus@gmail.com

Engineer of the Department «Strength of Materials»

Russian Federation

A. I. Grishchenko

Saint Petersburg State Polytechnical University

Email: gai-gr@yandex.ru

Graduate student

Russian Federation

References

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