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Proceedings Paper

Application of lasers in photoacoustic and photothermal microscopy of solids with residual stresses
Author(s): Kyrill L. Muratikov; Alexej L. Glazov
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Paper Abstract

Photoacoustic and photothermal techniques which can be used for the investigation and imaging of solids with residual stresses are described. Photoacoustic and photothermal images of different types (photodeflection, photoreflectance, photoacoustic piezoelectric) are presented. By imaging Vickers indented samples it is demonstrated that the photoacoustic piezoelectric microscopy has a high sensitivity to residual stresses. It is also shown that thermal wave images do not reveal a strong influence of residual stress on thermophysical properties of materials. Presented results of the photoacoustic and photothermal imaging of samples under direct loading and annealing demonstrate some specific features of the residual stress influence on the photoacoustic signals. The possibility of development of new non-destructive evaluation systems based on application of modern lasers for residual stress detection is discussed.

Paper Details

Date Published: 5 February 2002
PDF: 10 pages
Proc. SPIE 4680, Second International Conference on Lasers for Measurement and Information Transfer, (5 February 2002); doi: 10.1117/12.454672
Show Author Affiliations
Kyrill L. Muratikov, A.F. Ioffe Physical-Technical Institute (Russia)
Alexej L. Glazov, A.F. Ioffe Physical-Technical Institute (Russia)

Published in SPIE Proceedings Vol. 4680:
Second International Conference on Lasers for Measurement and Information Transfer
Vadim E. Privalov, Editor(s)

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