Fracture of aircraft titanium alloys under high-frequency loading

Abstract The paper is devoted to the problem of fatigue failure of two-phase titanium alloy VT3-1 under the action of high-frequency cyclic loading. Samples for the tests were made from the compressor disk of aviation engine D30-Ku installed on Tupolev Tu-154 planes. Repeated alternating loading was...

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Main Authors: Alexander D. Nikitin, Pavel S. Shesterkin, Sergey S. Lopatin
Format: Article
Language:English
Published: Springer 2023-02-01
Series:SN Applied Sciences
Subjects:
Online Access:https://doi.org/10.1007/s42452-022-05266-8
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author Alexander D. Nikitin
Pavel S. Shesterkin
Sergey S. Lopatin
author_facet Alexander D. Nikitin
Pavel S. Shesterkin
Sergey S. Lopatin
author_sort Alexander D. Nikitin
collection DOAJ
description Abstract The paper is devoted to the problem of fatigue failure of two-phase titanium alloy VT3-1 under the action of high-frequency cyclic loading. Samples for the tests were made from the compressor disk of aviation engine D30-Ku installed on Tupolev Tu-154 planes. Repeated alternating loading was carried out by displacements of small amplitude at 20 kHz, coinciding with the first harmonic of longitudinal elastic vibrations of the sample. Analysis of specimen fracture surfaces shows predominant subsurface fracture. Analysis of areas of fatigue nucleation allows identifying elements of microstructure associated with crack nucleation. The results of the study can be used in the interpretation of fracture scenarios of structural elements in operation. Increasing the resource of products under such loads is possible through the use of damping layers or tapes, where possible.
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spelling doaj.art-228f4a06d28f40c9bd48be0a8cbabc0f2023-02-05T12:20:37ZengSpringerSN Applied Sciences2523-39632523-39712023-02-015211110.1007/s42452-022-05266-8Fracture of aircraft titanium alloys under high-frequency loadingAlexander D. Nikitin0Pavel S. Shesterkin1Sergey S. Lopatin2Moscow Aviation Institute, National Research UniversityMoscow Aviation Institute, National Research UniversityMoscow Aviation Institute, National Research UniversityAbstract The paper is devoted to the problem of fatigue failure of two-phase titanium alloy VT3-1 under the action of high-frequency cyclic loading. Samples for the tests were made from the compressor disk of aviation engine D30-Ku installed on Tupolev Tu-154 planes. Repeated alternating loading was carried out by displacements of small amplitude at 20 kHz, coinciding with the first harmonic of longitudinal elastic vibrations of the sample. Analysis of specimen fracture surfaces shows predominant subsurface fracture. Analysis of areas of fatigue nucleation allows identifying elements of microstructure associated with crack nucleation. The results of the study can be used in the interpretation of fracture scenarios of structural elements in operation. Increasing the resource of products under such loads is possible through the use of damping layers or tapes, where possible.https://doi.org/10.1007/s42452-022-05266-8Titanium alloyFatigue failureCompressor diskMicrostructureCrack initiationCrack growth
spellingShingle Alexander D. Nikitin
Pavel S. Shesterkin
Sergey S. Lopatin
Fracture of aircraft titanium alloys under high-frequency loading
SN Applied Sciences
Titanium alloy
Fatigue failure
Compressor disk
Microstructure
Crack initiation
Crack growth
title Fracture of aircraft titanium alloys under high-frequency loading
title_full Fracture of aircraft titanium alloys under high-frequency loading
title_fullStr Fracture of aircraft titanium alloys under high-frequency loading
title_full_unstemmed Fracture of aircraft titanium alloys under high-frequency loading
title_short Fracture of aircraft titanium alloys under high-frequency loading
title_sort fracture of aircraft titanium alloys under high frequency loading
topic Titanium alloy
Fatigue failure
Compressor disk
Microstructure
Crack initiation
Crack growth
url https://doi.org/10.1007/s42452-022-05266-8
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