Experimental study of ultrasonic wave propagation for austenitic and dissimilar welds

Author

Kohler, Benjamin ; Barth, Matthew ; Schubert, Falk

Author_Institution

Fraunhofer IZFP-Dresden, Dresden, Germany

fYear

2012

fDate

7-10 Oct. 2012

Firstpage

261

Lastpage

264

Abstract

Ultrasonic wave propagation in a bimetallic weld is visualized by Laser Doppler Vibrometry. An advanced averaging procedure helps to get high resolution data sets. The visualization helps to understand wave propagation effects in such complicated inhomogeneous anisotropic materials. We demonstrate, that also grain structure images can be obtained out of the same data set by a method called Grazing Incidence Ultrasound Microscopy (GIUM).

Keywords

Doppler measurement; acoustic microscopy; anisotropic media; bimetals; crystal microstructure; ultrasonic propagation; vibration measurement; welds; GIUM; advanced averaging procedure; austenitic welds; bimetallic weld; dissimilar welds; grain structure images; grazing incidence ultrasound microscopy; inhomogeneous anisotropic materials; laser Doppler vibrometry; ultrasonic wave propagation; wave propagation effects; Acoustics; Data visualization; Materials; Measurement by laser beam; Propagation; Ultrasonic variables measurement; Welding; Grazing incidence; Microstructure; Near field method; Ultrasound;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2012 IEEE International

Conference_Location

Dresden

ISSN

1948-5719

Print_ISBN

978-1-4673-4561-3

Type

conf

DOI

10.1109/ULTSYM.2012.0064

Filename

6562460