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

fYear

2008

fDate

Sept. 29 2008-Oct. 4 2008

Firstpage

276

Lastpage

278

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CAOL.2008.4671892

Filename

4671892