Non-contact ultrasonic acquisition of femtosecond laser-driven ablative Mbar-level shock waves on Ti alloy surface

Mbar-level ablative plume pressures, produced by single-shot femtosecond laser ablation of a dry Ti alloy surface and driving shock waves in air and in the solid target, were characterized using non-contact broad-band ultrasonic measurements. X-ray diffraction measurements reveal the resulting shock...

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Bibliographic Details
Published in:Applied physics letters 2016-02, Vol.108 (8)
Main Authors: Ageev, E. I., Kudryashov, S. I., Nikonorov, N. V., Nuryev, R. K., Petrov, A. A., Samokhvalov, A. A., Veiko, V. P.
Format: Article
Language:English
Subjects:
Applied physics
Compressive properties
Deformation
Laser ablation
Shock waves
Stresses
Titanium base alloys
Wave diffraction
X-ray diffraction
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Summary:Mbar-level ablative plume pressures, produced by single-shot femtosecond laser ablation of a dry Ti alloy surface and driving shock waves in air and in the solid target, were characterized using non-contact broad-band ultrasonic measurements. X-ray diffraction measurements reveal the resulting shock-wave induced sub-GPa residual compressive stresses over multi-micrometer depths inside the target, indicating GPa-level residual compressive stresses on its surface.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4942833