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The effect of external stresses on the behavior of photoacoustic signals inside vickers indenter marks on a steel surface


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Abstract

It is experimentally established that the characteristics of photoacoustic signals inside Vickers indenter marks in metals significantly change under the action of external stresses. Relative changes in the signal amplitude are estimated in the framework of a quasi-static approximation based on the temperature dependence of the elastic modulus of the metal.

About the authors

A. L. Glazov

Ioffe Physical Technical Institute; Institute of Problems of Mechanical Engineering

Email: klm.holo@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 199178

N. F. Morozov

Institute of Problems of Mechanical Engineering; St. Petersburg State University

Email: klm.holo@mail.ioffe.ru
Russian Federation, St. Petersburg, 199178; St. Petersburg, 199034

K. L. Muratikov

Ioffe Physical Technical Institute; Institute of Problems of Mechanical Engineering

Author for correspondence.
Email: klm.holo@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021; St. Petersburg, 199178

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