Fracture and Structural Integrity e-ISSN 1971-8993 Open access
SI: Russian mechanics contributions for Structural Integrity Vol. 16, No. 62 (2022)

Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening

Author and affiliation details
  • Anastasia Iziumova Corresponding author Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS), Russia ORCID iD0000-0002-1769-9175 fedorova@icmm.ru
  • Aleksei Vshivkov Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS), Russia
  • Aleksandr Prokhorov Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS), Russia ORCID iD0000-0002-6511-2105
  • Elena Gachegova Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Science (ICMM UB RAS), Russia
  • Denis Davydov Institute of Metal Physics of the Ural Branch of Russian Academy of Sciences (IMP UB RAS), Russia - Ural Federal University (UrFU), Russia
DOI
10.3221/IGF-ESIS.62.35
Pages
516-526
Published
Licence
CC BY 4.0
Published inVol. 16, No. 62 (2022)Go to the issue

Abstract

The work is devoted to experimental investigation of the laser shock peening (LSP) effect on fatigue crack propagation rate 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 leads 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 the stress intensity factor and, as a consequence, effects on an intensity of plastic deformation at the crack tip. This effect can be visualised by measurement of heat flux from the crack tip area. Both heat flux from the crack tip and crack rate are less in the LSP processed specimens. Structural 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.

Keywords

Article history

  1. ReceivedUntil the next stage: 32 days
  2. RevisedUntil the next stage: 0 days
  3. AcceptedUntil the next stage: 13 days
  4. Published

How to cite

APA

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. Fracture and Structural Integrity, 16(62), 516–526. https://doi.org/10.3221/IGF-ESIS.62.35

IEEE

A. Iziumova, A. Vshivkov, A. Prokhorov, E. Gachegova, and D. Davydov, “Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening,” Fracture and Structural Integrity, vol. 16, no. 62, pp. 516–526, 2022, doi: 10.3221/IGF-ESIS.62.35.

MLA

Iziumova, Anastasia, et al. “Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening.” Fracture and Structural Integrity, vol. 16, no. 62, 2022, pp. 516–526. https://doi.org/10.3221/IGF-ESIS.62.35.

Chicago

Iziumova, Anastasia, Aleksei Vshivkov, Aleksandr Prokhorov, Elena Gachegova, and Denis Davydov. 2022. “Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening.” Fracture and Structural Integrity 16 (62): 516–526. https://doi.org/10.3221/IGF-ESIS.62.35.

Harvard

Iziumova, A., Vshivkov, A., Prokhorov, A., Gachegova, E. and Davydov, D. (2022) ‘Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening’, Fracture and Structural Integrity, 16(62), pp. 516–526. doi: 10.3221/IGF-ESIS.62.35.

Vancouver

Iziumova A, Vshivkov A, Prokhorov A, Gachegova E, Davydov D. Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening. Fracture and Structural Integrity. 2022;16(62):516-526. doi:10.3221/IGF-ESIS.62.35

BibTeX

@article{iziumova2022, author = {Iziumova, Anastasia and Vshivkov, Aleksei and Prokhorov, Aleksandr and Gachegova, Elena and Davydov, Denis}, title = {Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening}, journal = {Fracture and Structural Integrity}, year = {2022}, volume = {16}, number = {62}, pages = {516--526}, doi = {10.3221/IGF-ESIS.62.35}, url = {https://doi.org/10.3221/IGF-ESIS.62.35}, issn = {1971-8993} }

RIS

TY - JOUR AU - Iziumova, Anastasia AU - Vshivkov, Aleksei AU - Prokhorov, Aleksandr AU - Gachegova, Elena AU - Davydov, Denis TI - Heat dissipation and fatigue crack kinetic features of titanium alloy Grade 2 after laser shock peening JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2022 DA - 2022/09/22 VL - 16 IS - 62 SP - 516 EP - 526 DO - 10.3221/IGF-ESIS.62.35 UR - https://doi.org/10.3221/IGF-ESIS.62.35 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2022 Anastasia Iziumova, Aleksei Vshivkov, Aleksandr Prokhorov, Elena Gachegova, Denis Davydov.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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