Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening
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| Автор |
Iziumova, A.
Vshivkov, A. Prokhorov, A. Gachegova, E. Davydov, D. |
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| Тематика |
CRACK PROPAGATION RATE
FATIGUE HEAT DISSIPATION LASER SHOCK PEENING RESIDUAL STRESS TWINS CRACK INITIATION CRACK TIPS FATIGUE CRACK PROPAGATION HEAT FLUX STRESS CONCENTRATION TITANIUM ALLOYS CRACK KINETICS CRACK PROPAGATION RATE FATIGUE CRACKS FATIGUE CRACKS PROPAGATION KINETIC FEATURES LASER SHOCK PEENING RESIDUAL STRESS FIELDS STRESS CONCENTRATORS TITANIUM (ALLOYS) TWIN RESIDUAL STRESSES |
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| Описание |
The work is devoted to experimental investigation of the laser shock peening (LSP) effect on fatigue crack propagation and heat dissipation at the crack tip in specimens made of titanium alloy Grade 2 with a stress concentrator. It is shown that the LSP can lead both to positive and negative effect on fatigue lifetime. The effective processing scheme, which includes stress concentrator zone, was proposed. This type of treatment forms an optimal residual stress field, which slows down the crack initiation and propagation processes. The effective LSP processing scheme reduces the value of effective stress intensity factor and, as a consequence, effects on intensity of plastic deformation at the crack tip. This effect can be visualized by measurement of heat flux from the crack tip area. Both heat flux from the crack tip and duration of crack initiation are less in the LSP processed specimens. Microstructural investigations of LSP treated material near fatigue crack path have shown that structural defects (twins) that appear on the surface of the material as a result of LSP do not have a significant effect on the fatigue crack propagation, and the configuration of the residual stresses field created by LSP plays a decisive role. © 2022, Gruppo Italiano Frattura. All rights reserved.
Ministry of Education and Science of the Russian Federation, Minobrnauka his paper was prepared in the framework of the program for the creation and development of the world-class scientific center “Supersonic” for 2020–2025, with the financial support of the Ministry of Education and Science T of the Russian Federation. |
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| Дата |
2024-04-08T11:05:38Z
2024-04-08T11:05:38Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Iziumova, A, Vshivkov, A, Prokhorov, A, Gachegova, E & Davydov, D 2022, 'Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening', Frattura ed Integrita Strutturale, Том. 16, № 62, стр. 516-526. https://doi.org/10.3221/IGF-ESIS.62.35
Iziumova, A., Vshivkov, A., Prokhorov, A., Gachegova, E., & Davydov, D. (2022). Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening. Frattura ed Integrita Strutturale, 16(62), 516-526. https://doi.org/10.3221/IGF-ESIS.62.35 1971-8993 Final All Open Access; Green Open Access https://fracturae.com/index.php/fis/article/download/3742/3696 https://fracturae.com/index.php/fis/article/download/3742/3696 http://elar.urfu.ru/handle/10995/131189 10.3221/IGF-ESIS.62.35 85138489990 000890095500035 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Gruppo Italiano Frattura
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| Источник |
Frattura ed Integrità Strutturale
Frattura ed Integrita Strutturale |
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