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Doklady Physics

, Volume 63, Issue 4, pp 155–157 | Cite as

Laser Photoacoustic Microscopy of Vickers Indentations in Titanium

  • A. L. Glazov
  • N. F. Morozov
  • K. L. Muratikov
Mechanics

Abstract

The images of Vickers indentations in titanium are obtained by photoacoustic microscopy with piezoelectric-signal detection. It is shown that the analysis of the photoacoustic-image features makes it possible to obtain information on the nature of internal stresses in metal. In the framework of the single-temperature model of material thermoelasticity, it is demonstrated that the detected changes in the structure of photoacoustic images may be caused by the dependence of the thermal-expansion coefficient on stresses and by the presence of stress concentrators within the indentation.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. L. Glazov
    • 1
  • N. F. Morozov
    • 2
    • 3
  • K. L. Muratikov
    • 1
  1. 1.Ioffe InstituteRussian Academy of SciencesSt. PetersburgRussia
  2. 2.Institute of Problems of Mechanical EngineeringRussian Academy of SciencesSt. PetersburgRussia
  3. 3.St. Petersburg State UniversitySt. PetersburgRussia

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