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Estimating Fatigue Damage of Austenitic Steel by Combining the Ultrasonic with Eddy Current Monitoring

  • V. Mishakin
  • V. KlyushnikovEmail author
  • A. Gonchar
  • M. Kachanov
Article
  • 101 Downloads

Abstract

We propose a non-destructive testing methodology of estimating fatigue damage in austenitic stainless steel (prior to formation of macrocracks) that is based on monitoring changes in the effective elastic properties (more precisely, the Poisson’s ratio) due to microstructural damage. The elastic properties are also affected by growth of the martensitic phase, and the problem arises of separating the two factors. This is achieved by a combination of (1) measuring Poisson’s ratio with four-digit accuracy by ultrasonic devices, and (2) estimating volume fraction of the martensitic phase by the eddy current method. It is suggested that the critical value of the change of the Poisson’s ratio due to microstructural damage can be used as a criterion of failure.

Keywords

Fatigue damage Austenitic steel Monitoring Ultrasonic method Poisson’s ratio Eddy current method 

Notes

Acknowledgements

This work was carried out at the NNSTU named after R.E. Alekseev, with financial support from the government in the face of the Russian Ministry of Education under the Federal Program “Research and development on priority directions of the scientific technological complex of Russia for 2014-2020”, the unique identifier of the Project: RFMEFI58017X0012.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • V. Mishakin
    • 1
    • 2
  • V. Klyushnikov
    • 1
    Email author
  • A. Gonchar
    • 1
  • M. Kachanov
    • 2
    • 3
  1. 1.Mechanical Engineering Research Institute of RAS - Branch of the “Federal Research Center The Institute of Applied Physics of the RAS”Nizhny NovgorodRussian Federation
  2. 2.Nizhny Novgorod State Technical University Named after R.E. AlekseevNizhny NovgorodRussian Federation
  3. 3.Department of Mechanical EngineeringTufts UniversityMedfordUSA

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