Title :
Influence of crater time evolution on acoustic emission on laser treating of metals
Author :
Ivanov, Alexey Yu ; Kapytski, Andpey V. ; Nedolugov, Vladimir I.
Author_Institution :
Grodno State Univ., Grodno
fDate :
Sept. 29 2008-Oct. 4 2008
Abstract :
The generation of acoustic waves during the crater on the surface of metal growth was investigated. It is shown that the law of temporal evolution of the sizes of the zone of inelastic deformation can be determined unambiguously from the time dependence of the pressure in an elastic wave recorded at a large distance from a breakdown area. It is shown, that the intensive crater growth begins in ~20 mus (in the end of laser action) and continues up to laser plasma set relaxation (~40 mus).
Keywords :
acoustic emission; deformation; laser materials processing; surface structure; acoustic emission; acoustic wave generation; crater time evolution; elastic wave; inelastic deformation; intensive crater growth; laser plasma set relaxation; laser treatment; metal growth; temporal evolution; Acoustic emission; Acoustic waves; Electric breakdown; Electronic mail; Optical materials; Optical propagation; Plasma materials processing; Plasma waves; Plastics; Surface emitting lasers; crater growth; elastic wave; inelastic deformation; laser treating; plasma relaxation;
Conference_Titel :
Advanced Optoelectronics and Lasers, 2008. CAOL 2008. 4th International Conference on
Conference_Location :
Crimea
Print_ISBN :
978-1-4244-1973-9
Electronic_ISBN :
978-1-4244-1974-6
DOI :
10.1109/CAOL.2008.4671892
