|
This article is cited in 11 scientific papers (total in 11 papers)
Metals
Variations of photoacoustic signals within the Vickers indent in metals under external stresses by the examples of steel and nanocopper
A. L. Glazovab, N. F. Morozovbc, K. L. Muratikovab a Ioffe Institute, St. Petersburg
b Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, St. Petersburg
c Saint Petersburg State University
Abstract:
The effect of external mechanical stresses on the parameters of photoacoustic signals within Vickers indents in steel and nanocopper has been experimentally revealed. It has been shown that changes in photoacoustic signals can be reversible and irreversible, depending on the indent orientation and the stress applied to the sample. In this case, reversible changes can reach significant values at the level of tens of percent of the average signal from the sample. The relative changes in the photoacoustic signal amplitudes have been theoretically evaluated for indented and unindented areas, taking into account the temperature dependence of the elastic modulus of metals. It has been shown that its consideration allows qualitative explanation of the differences in the behavior of photoacoustic signals under stresses in indented and unindented areas.
Received: 14.03.2016
Citation:
A. L. Glazov, N. F. Morozov, K. L. Muratikov, “Variations of photoacoustic signals within the Vickers indent in metals under external stresses by the examples of steel and nanocopper”, Fizika Tverdogo Tela, 58:9 (2016), 1679–1687; Phys. Solid State, 58:9 (2016), 1735–1743
Linking options:
https://www.mathnet.ru/eng/ftt9843 https://www.mathnet.ru/eng/ftt/v58/i9/p1679
|
Statistics & downloads: |
Abstract page: | 37 | Full-text PDF : | 5 |
|